When Jonah is manning the prize wheel, the positioning of his arms changes repeatedly between shots.
There is clearly nothing in the 6 boxes purportedly containing donuts that Glenn carries into the store.
The plexi-glass dividers installed at the registers to separate the employee from the customer to help reduce potential contamination is installed only near the credit card reader. The rest of the area is completely open, which would do nothing to prevent potential virus spread.
Cheyenne and Mateo explain that with Glenn out and all the smack she's talked about him over the years, everyone expects Dina to crush it right out of the gate as temporary manager. As assistant manager, Dina has been left in charge of the store numerous times. There is nothing particularly special about this instance, other than the potential duration.
When Sandra is reporting to Glenn on the prize wheel activity, she is positioned behind the wheel. She would not be able to see anything that is happening on it.
After being asked to leave the store because he had been exposed to COVID-19, Glenn tells Sandra that he couldn't go home because his wife was setting up a place for him in the garage to keep the virus away from their daughter. However it wouldn't have mattered since he'd been exposed the night before and had already exposed his wife and daughter to it, so he didn't need to be isolated from them.