Some time ago I made "fresh install" of Windows 11 ( keep all my files but delete all drivers ).
I prefer to wipe all traces of the old OS off the drive when performing a "fresh install". That way I know I've got rid of anything that might be causing a problem.
If you want to keep any existing files, copy them to another drive, USB memory stick, cloud, etc., for later retrieval. Alternatively, buy a new SSD and disconnect all other drives whilst installing Windows.
Should I install manually some drivers ( like chipset etc ) or Windows Update handle that? .
I find Windows makes a pretty good job at installing most drivers at the outset. Because I always install Windows with a Local Account whilst offline, as soon as I connect to the internet, Windows Update starts up and a few minutes later, the screen goes black for a few seconds when the default Microsoft Display Adapter driver is replaced by an NVidia or AMD driver. When the screen reappears, it's at a significantly higher resolution.
Unless I'm doing something fancy, or when Device Manager shows some devices without drivers, I just leave the system as is. I do sometimes click on "View optional updates" in Windows Update, then check "Driver Updates". If you have any devices with no drivers, they're often included in this section. It can be easier that hunting for obscure drivers elsewhere, especially on obsolete hardware.
For important graphics work, I download the Nvidia Studio driver which (in theory) might be more stable than the Nvidia Gaming driver. Some of my older GPUs have not had a driver update since 2020.
I can't remember manually updating chipset drivers very often. It might be a good idea if I did, but unless I see errors, Windows Update usually seems to cope, even if some drivers are years out of date. The one exception I make is drivers for 10Gb Ethernet and SFP+ network cards. Here I prefer to download and install the latest driver. I'm more thorough on my main systems, but on old sacrificial systems used for testing, I don't worry so much.
Okay but installing them is safe right? Or something can go wrong ?
And if in CHIPSET section on that site there are few drivers from the same day , I should install all of them yes?
If you're downloading drivers from reputable sources, i.e. the motherboard manufacturer's web site, NVidia, etc., then you should find all their drivers are "safe", i.e. not infected.
If you experience any instability after updating a driver, you can try "rolling it back" in Device Manager.
When presented with a selection of drivers, I usually install the most recent/latest version number.