Not really from a privacy concern, that’s simply a bonus, more of a reliability/convenience interest. Even if internet/mobile internet is out for some reason, being able to easily text across local network would be nice.
For Windows/Android mainly, but crossplatform tools that include those are great too!
Oh hey, going there reminded me at some point I’d found this and bookmarked it but haven’t tried it yet, so thanks for the reminder! I should finally give it a try.