yep. you have to set up different profiles first. type in the url bar, “about:profiles”.
librewolf is a concurrent fork of Firefox, so search for how to make profiles in FF.
once you have more than one, the software will ask you which profile to open; but you can also create different startup icons for them in Linux.
all of this is for the desktop. it can be hellish to try to do manage all of this if you have to add Android as part of the equation.