I've been using rustdesk for while, and it works very well for me. The news of it being somewhat opaque, and developed from China, makes me a bit nervous.

Is there a FOSS equivalent that won't make me jump through hoops, and be easily installed by someone else remotely?

I would like to be able to have it run at startup in Linux and windows, have a fairly complete feature set, like file transfer, copy paste, etc.

Also it'd be great if it could be easily installed by someone else remotely. I do SMB support, usually onsite, which is why it's not cost effective to pay for a Teamviewer or Anydesk license.

I'm taking a look through flathub, but recommendations would be greatly appreciated.