Looks like they're using stop W2 as "Sheldonian Theatre" now. I don't know whether it's temporary or permanent though.

OBC call it "Sheldonain Theatre": https://www.oxfordbus.co.uk/services/CSSO/CS1?date=2024-09-03&direction=inbound&all=on
https://www.oxfordbus.co.uk/stops/340002012CS
But it isn't, it's stop W2 near Wadham College: https://www.oxfordbus.co.uk/stops/340002012CS

Which is here in data we can use (NaPTAN derived): https://bustimes.org/map#17.34/51.754955/-1.254774

Described as "On Parks Road, near Sheldonian Theatre". Which is a stretch, but OK and I see where OBC are getting that from: https://bustimes.org/stops/340002012CS (it's still the Wadham College W2 stop, though)

I hope this isn't some seasonal thing that changes after the peak tourism months.