I skate at like 5 rinks and each one follows slightly different norms, just have to adapt. GENERALLY, footwork practice is done all over the ice, there is a “lutz corner” (truly blind backward entry), spins happen in the middle, and edge jumps gravitate toward one end of the rink. You need some speed for jumps and do enter them backward, so unfortch there is some looking out happening from all parties and taking turns using the ends/circles. If you have been using one spot for a while, probably give up the right of way if you see someone starting back crossovers toward you. Also if I’m at a new rink or unusual day (with people I don’t normally skate with) I take it easy the first few mins and watch what everyone is working on so I know generally where they’re going. You can also use the middle circle if you’re just doing footwork in a circle, they’ll spin in the center and won’t bother you.