I had a little fatigue but no long term issues thankfully. I live life like the latter part of your post though. Sometimes just making a phone call or carrying something across the house to put away feels like the most difficult thing in the world. On days when I get a spark and jump that first hurdle, I have to ride that wave the rest of the day. I'd love if that went away, but I've just learned to cope some.

My FiL has been suffering from long COVID for a long time now. Gets extremely fatigued easily and has some latent achiness. It's super sad to see, and nobody has been able to really help him.