Heatsink is not "VRMs". Heatsink is heatsink. The actual voltage regulation module components are 100% identical. The Tomahawk has been tested with the 3950x, with no problems, which means the Gaming plus could run that CPU with no problems, which definitely means it can run the 3700x, 3800x or 3900x with no problems.
The Pro carbon does NOT have a different VRM configuration. It is EXACTLY the same.
Multiple tier lists and VRM spreadsheets, as well as reviews, show the Gaming Plus, Tomahawk and Gaming Pro carbon as well as the B450-A Pro, having the same 4+2 RT8894A CPU VCC controller, same highside mosfet 2x 4C029N and lowside mosfet 2x 4C024N. They are all the same from what I've seen and from what every experienced Ryzen enthusiast I've talked with has said. If you know something different, let's see the evidence because there is no sense in not knowing if it's true.
All the big coolers are a PITA to install. There's just no getting around that because, well, they're BIG. But once installed they are dynamic performers. Thermalright and Noctua are top shelf, no question. There are no air cooler manufacturers that can compete on the same level for both overall cooling AND sound levels, as these two. There just aren't. Reviews bear this out year after year after year, model after model after model.
We're not talking about the 750w GQ, which is what you referenced, and we KNOW that from one model to the next, even within the same series, there can be and are major differences. Aris has not done a review of the 650w model, only the 750w model, so we can't realistically apply that review to the whole series. It just doesn't work that way. Yes they are usually somewhat similar but they are almost never the same. Especially with EVGA's series. Take the B3 models for example. Three of the models in that series blew up in Aris testing and another was outstanding. We've seen Seasonic use COMPLETELY different platforms within the same series, and others have done so as well.
In fact, OW specifically calls out the fact that the 850w platform and the 650w platform are different, which MOST LIKELY means the 750w platform is different as well. Generally, 550-650w share one platform while 750-850w models share a different one, for most series out there and it's pretty common for most manufacturers.
This unit is acceptable in all areas of Oklahoma wolf's testing including full power at 50°C and considering what's out there right now, that's good enough for any user, especially when they don't have much choice. If you read closely through his review, it's actually a pretty damn good unit compared to a lot of what's out there. Again, the unit you recommended is fine. It's not garbage either, as I said.
Also, I don't need you to tell me how to read reviews. I've been reading reviews since probably before you even knew what a power supply was. That is to say, I'm old, and have been doing this a rather long time, so yeah, I fully get it that reading the entire review is important beyond just the bullet points.
Either of these units, especially in the current market conditions, is a good enough choice and better than what 75% of users out there have in their systems, so really either of them "works" for me.