Yep, I just bought this extension 2 days ago, and found quite a few things are broken now. Like the resolution changing you mentioned, but also other things like the batching and combining objects into one mesh seems to be entirely broken as far as I can tell, which is very unfortunate because those were REALLY good for optimizing. There could be other things too, but I haven't fully tested it yet 😔
Edit:
I found out whats causing the bloom effect to enable it. GDevelop has some weird internal toggle that's needed to be enabled for 3d effects to work, seems like it only works when a layer effect is enabled now because the extension doesnt enable that toggle itself