this
best projects and most ground-breaking were almost always small teams, e.g. doom, silent hill 1 (renegade failure team from konami), zelda 1, majora's mask, half-life and in the most recent years minecraft, stardew valley, outer wilds etc. etc.
of course i won't deny the impact of "bigger" games like GTA 5, RDR2, Halo, Bioware games, etc. but you can tell already these games are loosing something because they have been handed over way more many people internally, so they end up feeling less "personal"
one new platformer every week
whoah, a new mario / super meat boy / nine sols clone or spin-off on steam and nintendo switch every week, what a treat
a new rts once a year
which nobody plays since everybody plays starcraft 2 and aoe2de
mmo being alive
at best they are zombie-tier, people only play them for nostalgia and for sunken-cost fallacy instead of genius renewed interest; literally nobody under the age of 30 plays mmos
sports / racing not dead
nigga what the fuck are you on? simulation maybe alive but it's not even gaming at that point, actually fun racing games have been dead since around the nfs most wanted / burnout paradise era
fps not dead
people play them almost exclusively for multiplayer (see latest Call Of Duty), which gameplay has not changed for 15 years+, also no hype for FPS campaigns except a handful titles like Doom 2016 and Eternal (one good game every 5-10 years, so)
survival / sandbox not dead
give me 10 ambitious survival / sandbox game that are not some cheap minecraft (2010) ripoff -- literally not a single minecraft update for the last 10 years has been meaningful btw
action-adventure
you got a point that they are still being made and do well business-wise, but 95% are slop
battle royal
braindead, see MMO