[lax4ever]

I have not used it personally, but I hear good things about Rust Desk https://rustdesk.com/

[mstaoru]

Second this. It is not very convenient to self-host and configure the clients for self-hosted version, but after an initial period of "press the three dots next to the number... yes... now switch to tab xxx" it works well enough. The configuration UI has room for improvement. :)