Google Authenticator now allows users to create and download a backup of their codes. Were you able to import this backup into Aegis or did you add the 2FA codes manually?
That's not quite correct... GA now allows you to create a single "QR Code" on screen that you're supposed to scan with Google Authenticator on a "new" device and it will import all your codes for you... but there is no option to "save" that QR code and screenshot is disabled within the app. As far as I can tell, the idea is that you go directly from GA on Device 1 to "authenticator app" on Device 2 etc... Aegis does seem to be able to read and import this single QR Code tho.
Also, can Aegis be used all over the place same as Google Authenticator or does it come with some limitations? I am considering using Aegis myself, so it might be good to know.
I have not found any GA code that is not compatible with Aegis... again, the only issue I've had is the occasional "time sync" error, where it won't accept the code, but doing the sync in GA seems to fix that issue.