https://wccftech.com/the-ascent-devs-are-working-to-make-the-game-pass-and-steam-versions-identical/

We were surprised (in a negative way) to learn that The Ascent on Game Pass PC launched with broken ray tracing and missing NVIDIA DLSS support compared to the game's Steam version. Luckily, a patch was issued last Friday that fixed the broken ray tracing, at least.

Speaking to VG247, Neon Giant's Game Director Arcade Berg explained why that happened. He also stressed that it's 'absolutely' the developers' intention to make the two versions of The Ascent identical.