Haven't heard any news about a patch, unless I missed something. I attached a picture of the download page in GOG Galaxy. 152 MB download.

i've looked over at gog db and can only see 2025-02-21 1.0.0_GOG from 1.0_GOG 2025-02-11

galaxy can be odd tbph ,like i downloaded the latest off-line version of no mans sky no_mans_sky_5.57_worlds2_138157_(79978), installed it and then galaxy said their was an update unyet the game was the latest

their is an aspire patch note page i'll try to find it
alternatively you could reach out to gog to see if they have added something

I can’t find any patch notes but as far as I can tell, the only change is that (for me at least) the option to have Lara wear her sunglasses in AOD now works (it was greyed out before).

Yes, it was to bring the game in line with the latest version (Steam/EGS). Originally GOG got what seems to be a slightly older (earlier) build of the game. There are some differences and minor graphical glitches that are fixed in the latest build that was just pushed out. However, there are some aspects that were better in the older build - for example whereas the older GOG build had reflections on wet surfaces and heat haze effect in AoD, the new one removes them (in line with what was in Steam and I assume EGS on release).

On the other hand, the latest build does fix some issues like the enemies' bodies flying around when you kill them, invisible textures, object pop in, etc. Thankfully with GOG you get to choose which version you want. I'm sure that eventually the developers will fix all versions to the same level, but for now if you bought the game on GoG you get to decide whether you want to play the slightly glitchier version with extra graphical effects (the pre-patch day-1 GOG build), or the slightly more fixed version that lacks those graphical flourishes (the new build)