First you have my sympathy for getting Covid, and then to losing your sense of taste.
I had Covid in March 2020, and I had particular problems with taste.
Initially there was anosmia which is a lack of sense of taste which I think is where you are now. This doesn't last long and the trick is just to keep trying different flavours so that your brain remembers it's supposed to smell and taste things.
In my case. my sense of taste came back muddled all wrong. This is called parosmia and it went on for about two years properly and bits have persisted for the full four years though I think I'm pretty much back to normal now. It's very hard to say what happens if you go into power or smell people say oh does that not taste nice? What does it taste like and the answer is it doesn't taste like anything else it just taste horrible and how it tastes horrible varies from person to person. For example, I hear stories of people with parosmia using curry spices to cover the unpleasant tastes, but in my case, curry was one of the worst things that in particular was revolting, as was red meat and pork.
If you have either anosmia or parosmia badly. the best thing is supposed to be smell training. You can sniff things that you might not want to swallow. Oil of lemon is a good one for this, but the trick is just to keep trying different things and going back to things after a while. if you have short lived anosmia that will resolve itself, then sweet things like cookies are a good way of getting something pleasant, but if it persists, then you have to be more inventive, I did get through a lot of Sriracha, for some reason that was always okay, as were eggs, potatoes and apples, anything else felt like Russian roulette.
The last things to go in terms of parosmia have been red wine. Some are now okay but I still get the occasional glass I find unpleasant, and coriander herb, which I have always loved, and I'm back to eating it now, but it tasted very unpleasant for a while yet I could substitute dill, which is very closely related.
Good luck - remember it probably won't last long.