So I am switching my OBFS4 bridge that was here

https://metrics.torproject.org/rs.html#details/386E99371B8CD938248940B754F16AAC54B5712B 

From running on Windows to running on Debian, as the older computer I was running it on, Windows updates started causing it to not boot correctly haha. With some work I was able to get Debian running on the machine.

I am wondering, does unattended upgrades as configured here:  https://trac.torproject.org/projects/tor/wiki/TorRelayGuide/DebianUbuntuUpdates 

Keep OBFS4 up to date as well?

Is it safe to use tor browser through teamviewer from the computer I am running the bridge on?

Unfortunately the relay key for the former bridge was lost as  the hard drive failed due to a Windows update causing it to crash, do the bridge relay keys have any other relevance than flags?

Thanks very much.