Lots of looping folks use two loopers this way.
Although, if I started to do a lot of stuff with pedals I’d probably want a patchbay for re-routing purposes.
But for myself, the ER-301 has unlimited loopers. I think I just need some foot switches, rather than build up a pedal board… In fact, I should just use some MIDI > CV to make my Behringer FCB1010 more useful…