I'm in the same situation, and there was some discussion of this very type of request last fall in these forums
My understanding is that OBS is not designed for this use case :( and there isn't much interest in pursuing, especially as there are existing ways in Windows to share a User Profile, and/or you could use Folder redirection to accomplish similar for just the OBS folders under \Users\ <username>\AppData\.... [just takes some intimate OS knowledge, vs an end-user friendly toggle]
Regardless, be cognizant of your source folders
One thing I've done is make sure I use \Users\Public\ where I created \Livestream to put all of our content (logos, pre-recorded videos, announcements, etc). This way, regardless of user profile logged in with, the scene collection settings will point to same location. You could of course, use D:\..something... from old-school days and security considerations, I strictly avoid adding folders to root of c:\
As part of our process, I Export both our Scene Collection and Advanced Scene Switcher (which I make good use of) settings each week as part of backup process. As roughnecks indicates, you can export Scene Collection and re-import (though recent notes indicates that is broken in some version of 26.. with comment about fixing in v27?? so test before relying on this). Note this won't cover overall OBS stream settings
