These are all in/around Doncaster; Morrisons, Aldi and Lidl are the ones to the north of town, the Asda is at the south end, the rest are in the town centre. The big Tesco's aren't included as I've not been in/past them this year. The situation recently has been:
Morrisons; One way in/one way out, person at the entrance to the store watching people go in but if they're counting and if there's someone watching people go out it's not obvious. Not had to queue outside but I usually go at quiet times, I go past it regularly but haven't seen a queue for some time.
Sainsburys: Queue system at the door with staff member counting, usually quiet early in the mornings when I go, but I've seen people waiting to go in later on. One way system to get in/out (unlike Morrisons it's a single wide entrance/exit), but the route from the tills to the exit goes right across the entrance.
Aldi: Light above the door, never seen it anything other than green but I only usually go up that way when I'm shopping there. If someone is monitoring numbers it's not obvious, separate entrance/exit
Lidl: I rarely go in, went about 3/4 weeks ago and they'd a person on the door, go past it quite regularly but haven't seen a queue outside for some time
M&S: One way system with separate entrance/exit (entrance goes through clothing, exit is from the Food section), still queues to get into the store at busier times, and a separate queue in Clothing to get into the food section. I've usually gone in early in the morning so had no problems getting into the store, but been stuck in the queue to get into food the last few times.
Asda: Not been in but one of my regular cycle routes goes past it, up until recently there'd been people queuing outside at around 15:15 when I went past
B&M: Not been when it's been busy, so the only visible things have been hand sanitiser and face-mask wearing, no-one on the door counting when I've been and haven't seen queuing outside for some time (there was always a queue outside when I went past for several months last year)
Poundland: Changed this week, they've two entrances/exits - one outside the shopping centre they're in, the other inside - but had only been opening the one inside the shopping centre and counting people in/out. The outside door was open yesterday and I didn't see any staff on the door when I went past.