Yeah, the best part of the DOS/SNES era was that the PC and Console were separate ecosystems with their own design fundamentals and genres. It was heaven to dip your toe in each, enjoying what was good and unique in each area. The Xbox era totally killed that and PC gaming as a space that was different, and the whole "omg PC sales are high again, PC is saved!!!" narrative of recent years ignores the fact that it only "succeeds" by becoming the dumping grounds for more unified console/PC games that have almost none of the unique characteristics from before the PC space died.
This funnily enough isn't really true at all, and the PC and Console ecosystems probably grew further apart (for a time) during the Xbox era despite that not exactly sounding right. Example: Diablo was also a PSX game, Warcraft 2 came out on the Saturn and PSX, StarCraft came out on the N64, but during the Xbox/PS2 era Warcraft 3, Diablo 2, and World of Warcraft never get console ports. Blizzard, a company that started on consoles, that brought all their previous big PC games to consoles, wouldn't return to consoles until Diablo 3; and Diablo 3 was 13 years after Starcraft 64. They ended up skipping the whole Xbox generation, and almost all of the 360/PS3.
Wizardry, Ultima, Pirates, Sim City games, Eye of the Beholder, Civilization, Dune 2, Maniac Mansion, Might and Magic, King's Bounty, and Lemmings were all computer series and games that got releases on the NES, SNES, and Sega Genesis. You also had stuff like Panzer General, which feels like one of the more PC PC games being inspired by Sega's Super Daisenryaku on the Genesis.
You don't really get a big separate between consoles and PC until the late '90s. Previously all the big PC RPG series came to consoles to some degree, but by the end of the '90s (and going into the 2000s) stuff like Fallout, Baldur's Gate, Plamescape: Torment, Icewind Dale, Wizardry 8, Ultima 9, Anachronox, Freedom Force and the Troika games never come to consoles. Kings Bounty is on the Genesis, but no Heroes games (besides an odd badly thought out Kings Bounty remake with the Heroes name) would come out to console. Dune 2, C&C and Red Alert got console releases, but Tiberian Sun and Red Alert 2 never came to Xbox or PS2; nor did that 2002 third person shooting one Renegade. You don't even really have RTS games coming back to console until the 360/PS3 era. EverQuest was a Sony game, Sony made a network adaptor for the PS2, and they still never brought the game over to the PS2. Most of what I think of as PC games from like 1997 and throughout the PS2 and Xbox era (so like 2000 - 2005) were only on PC.
You could point to FPS games getting bigger on consoles during the PS2 and Xbox era, but they were already coming over during the PSX/Saturn/N64 era; and the N64 was getting games like Doom 64 and Duke Nukem 64. The writing was already on the wall with regard to the FPS one consoles with stuff like the N64 and Alien Resurrection's dual analogue stick controls at the end of the PSX. Given how consoles had mouses going back to the 16-bit era, it almost seems weird Microsoft didn't have that stuff out of the box for the original Xbox and compatible with its games.