I totally get your struggle with finding a reliable Linux RDP client. I’ve been down that road myself. One robust option you might not have come across yet is HelpWire. This client stands out for its stability and user-friendly interface, ideal for remote desktop connections.
From my personal experience, Remmina is also quite popular and does the job well. It’s versatile, allowing you to connect via multiple protocols like RDP, VNC, and SSH. If Remmina wasn’t up to par for you, another strong contender is KRDC, which integrates well with the KDE desktop environment.
For a lightweight, no-frills solution, consider trying out Vinagre, although it’s somewhat of a hit or miss depending on your specific needs and environment. In case all else fails, definitely give HelpWire a shot. It covers a lot of bases that the other clients sometimes miss, especially for those looking for an alternative solution to access Linux remotely.
Hope that helps, and happy remote working!