I’d be cautious of all three. Opinions vary, unsurprisingly, but ASRock tends to be the most attractive choice for AM5, followed by MSI. Here B650 Eagle and B650 Pro RS are the same price but B650 Pro RS WiFi’s like 20% less, B650 Steel Legend’s not much more. ASRock also does decent 7000 series GPUs but I’d look at at least PowerColor and Sapphire as well.
Haven’t personally built G.Skill but keep coming across pretty mixed things about their DIMM thermals, so might be good to check on that. FWIW I’ve been building Vengeance and it’s been fine. Also, does 32 GB dual mean 2x16 GB or 2x32 GB?
170€ including 17% VAT’s steep for a previous gen TLC DRAMed 2 TB and there’s definitely no reason to pay a premium for Samsung’s drives. I can get SN850X, 990 Pro, 530R, and T500 for the same or lower and TLC HMB drives like the SN770 would also be an option here.
All good. Based on first CCD experience with 7950X and 9900X, mainly on computationally intensive tasks, I’d probably do 9600X. Not familiar enough with the games you mention to consider that aspect, though.
As @RotaryJunkie mentioned, a PS120’s plenty for the CPUs under consideration. Return on going to lower cost air pretty slight and the PS120’s basically unbeatable for AM5 air cooling, so IMO there’s no reason to cross to anything else.
For watercooling I’d tend to set up for a 360 rad. Often 120 dual tower air and 280’s more or less a tie and the 280s I know with meaningful noise-normalized advantage are expensive.
Lancool 207 and RM850x is a reasonable default, Lancool II (or III) if you want room for a longer supply or other things. At 7900 XT I’d start thinking about HX1000i or Hydro Pro Ti 1000.