So I have been using Linux since 15yrs now but I have not found any app that is similar in performance to MS RDP. Like it feels real time and not as if its a different PC. Issue with RDP is that it doesn't connect sometime. Also I need the host PC screen to be off like in RDP. VNC still uses the host screen.

Use case is I have a beefy PC but I want to use it from my laptop sometimes.