Couple points to start with. First is naming confusion. First came USB 3. Then with small improvements came USB 3.1. Quickly they ALL became USB 3.2 Genx. So now, Gen 1 has max data rate of 5 Gb/s and should be used with the new smaller Type C connectors, but are certainly supposed to work just fine with the older Type A, as long as they ARE USB 3. Generally, older USB2 connectors have a BLACK insert inside and they certainly have fewer contacts; USB 3 have BLUE inserts to help identify, and they have five extra contacts on the back of the socket.
Gen 2 has max data rate of 10 Gb/s, and it is really recommended that they be used with the new Type C connections. They CAN be used with the Type A, and a LOT of computer cases have Type A sockets for Gen 2 ports just because so many legacy devices have those connectors on their cables. HOWEVER, there is no guarantee that a Type A connection will actually work at that 10 Gb/s speed - they may work slower.
Gen 2x2 has max 20 Gb/s data rate and MUST be used with Type C connections. There are few devices that can actually use that data rate.
When you shop for a powered HUB, often the names are older ones because the product hit the market before the names changed. So it may say USB3, or it may say USB 3.1, or it may say USB 3.2 Gen 1 - those are ALL the same. The Gen 2 ones MAY say USB 3.2 Gen 2, OR that may say USB 3.1 and say elsewhere that they do support up to 10 Gb/s. I have not yet found ones that say they are USB 3.2 Gen 2x2, but they will come!
When you use a USB Hub, there are two important things to recognize. One is power. ALL USB 3.2 ports are supposed to supply up to 0.9 A power at 5 VDC for their attached devices (some special versions even more), so your Hub MUST be able to supply that and NOT depend on the computer host's single port for power. And here's where it can get a little complicated. The port supplies power at 5 VDC, BUT so often the Hub comes with a "power brick" that feeds the Hub at 12 VDC, and then the Hub converts down. So you have to start thinking in WATTS of power, where WATTS = Volts x Amps. So ONE Hub port must be able to supply 5 VDC x 0.9 A = 4.5W. To do that, it needs to receive from its "power brick" that 4.5 W or a little more, and at 12 VDC that is 4.5/12 = 0.375 A. IF the "power brick" spec is in WATTS to start with, just do all your calcs in Watts. IF it has a spec in Amps, you should convert to Watts and work that way. For example, a Hub with 7 ports ALL of the normal USB3.2 Gen 2 spec (ignoring any extra "charging ports") needs a power supply of 7 x 4.5W = 31.5 W, maybe a bit more. BUT you almost never will find that the "power brick" included with a Hub can supply that much. Why? To save money, of course. But the expectation is that you will NEVER plug in a heavy power device in EVERY Hub port AND use them ALL simultaneously, so the real max load on the Hub will never be that max calculation. A "power brick" able to supply 60% of max calculated is probably OK, 75% or more is usually quite sufficient.
Here is a USB 3.0 Hub with 10 ports, but only 7 of them are standard USB 3.2 Gen 1 ports. It comes with a 60 W "power brick" because its dedicated "charging ports" are able to supply MUCH more power to their devices for charging purposes. NOTE that this is NOT what you want - it is rated only for Gen 1 speed.
https://www.amazon.com/Sabrent-Charging-Individual-Switches-HB-B7C3/dp/B0797NWDCB/ref=sr_1_4?crid=FW86BWUKUF1&keywords=USB3+Hub&qid=1640729464&sprefix=usb3+hub,aps,86&sr=8-4
This Hub has 4 ports, rated as USB 3.2 Gen 2 (10 Gb/s max), with a 12 VDC 2.5 A "power brick" - that's 30W max, quite enough for 4 USB 3.2 ports.
https://www.amazon.com/ORICO-Powered-Aluminum-SuperSpeed-Splitter/dp/B07XHL5399/ref=sr_1_6?crid=3P7JNBV4WMAAW&keywords=usb3.2+hub+powered&qid=1640730046&sprefix=USB3.2+Hub,aps,91&sr=8-6
BUT you want more than 4 ports. Moreover, I note that almost all the Hubs I saw have only Type A output ports, so there is a question whether those ports really will allow a single connected device to exceed 5 Gb/s max data transfer rate. That may or may not matter to you.
The second item is data rate. The Hub has ONE host port connection, and that IS the limit on the TOTAL max data rate between it and the host. That max rate is shared among all the ACTIVE devices at one time. Again, the expectation is that MOST users may connect many items to ports, but actually USE very few of those ports at their max data rates simultaneously. As a user, YOU have to guesstimate whether that limit on shared max total data rate is going to be a problem for you.
Bear this in mind, because it really can help simplify. You probably have several devices that really can ONLY be used at the old USB2 data rate - keyboards, mouse, etc. Although they CAN be connected to a USB 3.2 Gen 2 Hub port, you are MUCH better off if you get an older USB 2 Hub with its own "power brick" and connect that to is own USB 2 port on the host computer. This reserves the much faster performance of the USB 3.2 Gen 2 Hub for only those devices that need that speed. Now, many mobos now come with a couple of USB2 headers on the mobo, but NO port sockets exposed on the back plate of the mobo. You CAN get adapter plates that fit into a rear slot for an unused PCIe card slot that expose two or four USB 2 sockets on the back. (A standard mobo USB 2 header supports TWO USB 2 ports.) This one has two sockets
https://www.amazon.com/StarTech-com-Female-Plate-Adapter-USBPLATE/dp/B0000511LW/ref=sr_1_4?crid=399PE55WNJHPP&keywords=usb+2+adapter+plate&qid=1640729340&sprefix=usb2+adapter+plate,aps,91&sr=8-4
and this one has four fed from two mobo headers
https://www.amazon.com/StarTech-com-Port-Female-Plate-Adapter/dp/B00015Y0FK/ref=sr_1_3?crid=399PE55WNJHPP&keywords=usb+2+adapter+plate&qid=1640729386&sprefix=usb2+adapter+plate,aps,91&sr=8-3
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