Yeah lemme get a hit of what you're smoking... I would argue modern games have a heavy over saturation of ridiculously colorful games. Look at the popular titles of like every major genre within the last few years and tell me that's not the case.
Shooters- Fortnite, Valorant, Apex, The finals, Splatoon (cod being the only major shooter with a drab palette)
Car/Racing- Mario kart, Forza, rocket league, that one game everyone overlays on TikTok videos with the crazy winding tracks
Fighting- Street fighter, Tekken, MK, Smash, Guilty gear (all very colorful or at least significantly more colorful than the previous iterations)
Indies- Hades, hollow knight, cult of the lamb, pizza tower, stardew valley, undertale, subnautica, vampire survivors, ori
Pandemic hits everyone obsessed over, among us and fall guys.
Marvel snap is the biggest entry into the card game market, which has been dominated by none other than Hearthstone for a while now.
The only genre I can think of that doesn't have an excess of color is rpg's, with the new Zeldas, baldur's gate 3, starfield, elden ring, last of us, etc being a bit neutral, (still not dull by any means) but even with that being said things like spider man, palworld, and cyberpunk exist.
Anyway, yeah this list got a lot longer than I planned but I think it illustrates my point.
There was definitely a period in the Xbox 360/PS3 era where everything was a drab grey and brown with a godawful bloom effect on everything. We do seem to be past that now, thankfully.
Might also have to do with the display used - games are mastered for HDR and SDR, and I find that I have to be much more precise with color correction than I was with older games; Helldivers 2 needs more saturation in game for me