I mean your argument is basically “if no comparison can be made it is not an indication of X”

But you can compare it to other games: almost 5 years onwards we know that BotW & Odessey are some of the best performing games on the system (using first hand accounts and metrics such as Peak/median/variable FPS & Ms) while multi-platform games tend to be at their worst performance on the switch - similarly games built exclusively for Xbox/PS TEND to be the best performing games on their respective consoles (Spider-man, GoW, Halo, Forza, etc): this is not to say that a multi platform game such as GTA V or Red Dead can’t come out looking great and showcasing the power of newer generation hardware: it just typically isn’t the case with multi platform games (also rockstar is a different powerhouse than your average 3rd party developer)

It typically just boils down to how many platforms the game is made for: most can handle to made for 2-3 (you see this typically with PC/Xbox/PS releases) but when you start making games for every console you tend to get a mess (see Cyberpunk 2077 which was built for 7 different pieces of hardware)

Optimizing games for a specific hardware to use it in specific ways to create the best possible product is typically the best way to ensure a good product