You are definitely asking on the very wrong website for serious help.
But if I could go back in time four years I would have taken it way way easier coming back to running after covid.
Covid loves to bind to ACE receptors in your body and all exercise produces tons of histamine which is a massive problem for covid and long-covid.
Covid and long-covid also mess with muscle refueling, glucose, glycogen, fat burning and ATP, the cells are starving even if there is energy present, it won't take it. Which is a guaranteed way of injuring yourself.
There are millions of people with long-covid. Half of it is genetics and unavoidable, but pushing yourself to return to fitness is also going to put yourself in a world of hurt.
If nothing else, stay way below your previous lactate threshold pace for weeks, this means NO SPEEDWORK, no fartleks, none of that, it can wait.
If you tempt fate because you feel fine, you might not feel fine the next day and next month or YEAR.
Google and maybe reddit are your friends for better answers, few are going to be useful here.
This is the best advice. Some people feel fine right away, but be extra cautious and go by feel. My case threw off my training and had me dealing with intermittent fatigue for around 8 months. Unless you enjoy struggling through 2 miles at 9 minute pace, give yourself extra days or weeks of short, easy running right now and as long as needed.
65 year old lifetime runner here. I've gotten sick maybe 2-3 times since this COVID nonsense began. Each time I've taken ivermectin immediately upon feeling sick and continued for a week. Each time, all symptoms were gone in less than 24 hours. No vax, no mask, no distance, no nothing. We just went on with our lives and lived as normal as we usual.