@alvarogc308 I use it like this and it works somewhat.
Like I have logged into my Opera account in OperaGX in 1 location(my main PC), and had lots of bookmarks in that PC but then I went on vacation for a while and was using my laptop and logged into my Opera account on OperaGX on that and it did not synchronize most of the bookmarks, nor the theme. It only synchronized the bookmarks that I saved from my Google and ported to OperaGX when I first installed it.
Anyone know what I can do to fix this?