RustDesk connections hanging / reliable alternatives?

Background: I have a laptop in one room on one floor that I'd like to be able to remote into from another laptop in another room on another floor. All spaces are covered by wifi. In general, I always prefer free and open source tools when available, which is why I've been trying RustDesk, and I really want to like it.

Problem: It seems like every 5 to 10 minutes, the connection hangs, and the only way to restore the connection is for me to bring my laptop upstairs and reset the connection on both machines. This is a significant impediment that renders the app basically unusable in my case.

Has anyone else had this issue? If so, how did you resolve it? Or if you use a different tool, which one, and how's that going for you?

On AlternativeTo.net, I'm seeing suggestions such as TigerVNC and HopToDesk, although I haven't tried either of them.

Both laptops are running popular Linux distros w/ graphical desktops (Mint, Fedora, etc).