I created a proposal to replace robot tokens in @npub1gdfr0... and start using a garage token. This way your robots can be deterministically derived from it so you can just save this new token and use it to generate an (in practice) unlimited number of unrelated robots, keeping the same privacy as before!
https://github.com/RoboSats/robosats/issues/2342
https://github.com/RoboSats/robosats/issues/2342