Posting the answer in case anyone stumbles on this thread in the future.
When using Nvidia GeForce NOW, the in game mod manager uses mods that have been approved for Xbox X/S use, which is why some of the mod versions were either not showing up or not the correct version.
I downloaded the most recent version of mods that had been approved for Xbox X/S online (I used mod.io since they clearly label which is the most recent version of a mod that has been approved for console use - look at the "Download files manually" section at the bottom of the bar on the RHS of each mod's webpage) and uploaded through the BG3 Mod Manager. My mod manager will show these mods as being out of date or needing an update, but as long as you don't do that, the mod versions will work.
Hope that helps anyone with the same issue!
