No two companies are the same, Bit of a weak argument imo.
Egosoft's X4 DLC Cradle of Humanity released in 2021
Hello Games' NMS got several (free) DLCs this year
SCS released DLC expansions in their usual quality for both ETS2 and ATS
Asobo released several (free) content and 'under the hood' updates for MSFS2020 this year
And I was even able to enjoy industry punchbag CP2077, completed the main story without any game-breaking issues while it looked and played smoothly and looking fabulous, on my second playthrough currently
These are merely examples from my own library from the top of my head, and I probably missed a few others.
Different mix of developers, large and small, capable of releasing stable, quality products during these challenging times (caveat on CP2077 obviously, but in direct comparison to Odyssey it runs rings around it from a tech and gameplay perspective, and it's a full game, not just a DLC). Frontier is somehow different though, got it.