OneCommander is a nice dual panel file manager. It is in fact a bit like nemo in that it has your main stuff in the panel at the left.
OneCommander has a feature to mount drives, but it's not the same as mounting a network drive. It will mount a network location/ drive just like you normally would. But it has an additional option you might like. Not sure what's going on and i never investigated it. Maybe a Win11 drive feat?
Thus, OneCommander is quite Feature rich (e.g. never got to investigating the mount option). You can get it from the MS Store.
I prefer freecommanderFreecommander, as mentioned above but I'd take OneCommander over Explorer++ or CubicExplorer. There are other dual-pane options but I haven't found anything this nice. Seems like the community is growing rapidly as well.
Cheers!