Bought a couple of hundred pounds worth of it in May with the same logic as you and pizza express... Hoping for some upside when Jeff Bezos decides to get azon Prime users some movie theatre perks as well!
I'm not sure it's wise lumping the likes of Matalan and Debenhams together as "retail".
IMO, one is a bargain basement out of town discounter that has a chance, the other is the complete opposite and is already dead, just doesn't know it yet.
I took a very small holding in Matalan just for diversification. I'm very heavy in Very (excuse the pun) and it's rewarded me handsomely so far, might buy a bit more if the second shutdown causes another panic selling wave. Right now I'm keeping my powder dry ready for the next lurch, whichever direction that may be.