Linux Workspace for Browser

Hello, im searching for a Workspace for a Webbrowser. I want to Connect to a GUI Like Interface where i can run Linux Software. I allready tried kasm. This was not bad but i want the full Desktop experience. Then i installed Guacamole under cloudron this was also OK but a bit slower. Would be cool if you could list me a few more tools and possibilities. Security is also a thing i guess? One funny thing i did started a big-sur docker container with qemunand vnc and connected it with guacamolem bit this was really slow. thanks!