OMAD is doable at least for me but I think it's cuz with the lack of sports and weights, I simply am not hungry and don't need to consume
I don't eat in the mornings so nothing new other than a large regular coffee/americano, I get super hungry around 2-3pm and if I have a large enough meal, that'll cover me for the rest. I find myself eating again around 9-10pm out of routine and boredom and not cuz I am hungry.
Been doing it on and off for a bit and don't notice any real changes so might stick to it. Not to mention saves money when you eat less food lol can't get fat, good for covid !!