RexSystem1 voteoriginally by @Jimmydabomb on GitHub OP
Yes, app launched successfully. Installed from the .deb file.
My passkey wasn't being recognized by the app, and it seemed to think I should use one from my linux browser instead of my android phone. I don't currently have a physical passkey on my desktop.
I ended up setting up my Authenticator app which the linux client could then utilize. This also was a small challenge as a QR code wasn't generated and for some reason it wouldn't let me C&P the key so I had to manually type in the authenticator key.
But all that being done, we're in and working.
(I should add that this all came up today after the 827 build was successful in launching. the 825 build didn't even get to the login screen.)
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Comment by @Jimmydabomb