Is that normal or has GOG screwed up again ?

Instead of updating my game, GOG's update stopped halfway, corrupting my install. So now I can't update, can't run the existing copy, and now I have uninstalled BG3 in the hopes of doing a fresh install. What happens next? "Server problem" pop up...

It's not even showing up for me. Did it get pulled?

For me it's even more strange: first, it showed that an update was available but trying to update resulted in a very unspecific error ("Cannot update" or something like that).
Now, after some waiting, there is an update - but it's 104.06 GB...

My update failed with a message saying that I need 126GB free space to download/install the update. :(

did Gslaxy itself try to update because yes that would cause this senario

try these steps;
1 https://remote-config.gog.com/components/webinstaller?component_version=2.0.0 grab the lastest Windows or Mac full install of Galaxy and run it

2 restart your system
3 try updating BG3 now

~53*2 (patch files + free space) = double space is required because the update is done in a safe method instead of a fast one.

a hotfix should be out later today [Windows only] and looks like Gforce is fed up with Larian,

Where is this info from and what do you mean by the Geforce remark? I could not find anything on the Larian Website.

i mean bg3 has been pulled from the gforce servers and [as currently] it not playable

there report page is here https://www.nvidia.com/en-us/geforce/forums/gfn-announcements/22/525160/geforce-now-service-status-baldurs-gate-3/

which includes a link to their statis page refreshed every 3 mins... i assume once a few hotfixs make the game playable again it will go back up but yes Larian forums also know about this

Mine is 103 GB