@techee I do not understand what the difference with having a separate LSP symbol tree sidebar is.
If the user has switched away from the symbols sidebar to any other sidebar that one remains selected, even over a shutdown/restart, until the user switches back to the symbols sidebar. So other than the first time LSP is started the user should not have to select the LSP symbols sidebar.
Switch to LSP symbols keybindings are/should be provided by the LSP plugin.
Have I missed something?