I am considering switching from authy because it still doesn't have folders or collections or tags but the transition is annoying without root on android.
Also wondering how people ensure they can restore if your phone dies?
I did the transition by extracting keys from the desktop app using the scripts mentioned in this gist[1] and its comments. Of course, you should not do this unless you are comfortable verifying the security of the scripts yourself.
Importing to Aegis afterwards was quite straight-forward.