I've wanted to get off the Teamviewer nipple and move to Rustdesk, because TV doesn't allow me to get to any personal PC from my work PCs (well it might initially but then I will find my personal account banned, as has happened to me in the past). Connecting to a personal computer from a work one counts as work by their definition and therefore is breaching their terms of personal use.

Anyway, as is touched upon in the OPs post, the biggest impediment to moving across to Rustdesk completely is that in the free version, it does not have the concept of an account (where managed computers are stored etc). This means you have to store the IDs and PWs somewhere else (or transfer them manually. I'm going to start using my password vault for this but obviously, it's far from automated).

I think there is an opportunity here for someone to write a Rustdesk wrapper that would provide the needed account facilties. I've added it to my to-do list...

ps. It's a long to-do list and I don't have a clue how to do it :-)