Edit: honestly, giving it a bit more thought, I'd actually say this about the Switch. Its games, even exclusives, have barely improved visually since 2017, and in the realm of non-exclusives, they feel like they look worse and worse the more outdated the console becomes.
I'd have to disagree on this, to me a game like Luigi's Mansion 3 looks significantly better than anything released in the first two years of the Switch.
We've seen games in the same series improve too; Mario Party Superstars looks better than Super Mario Party, Torna looks better than base Xenoblade 2, Doom Eternal looks better than Doom 2016, etc.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023. (And over 130 million lifetime)