I don't know where you heard this.. He was quarantined for like two weeks and missed some OTAs because of it.. And he absolutely showed after effects throughout that 2020 season. He showed educed stamina, strength and concentration. He had to be subbed more than he ever had before, he fumbled more than he ever had before and he had more dropped passes than he ever had before. I don't think it would still be lingering now two years removed.. but who knows.. That damn disease is nasty man.. There have absolutely been people who have reported effects long after they had "recovered." The most insidious of those effects being reduced lung capacity owing to permanent lung damage and ongoing brain fog.. probably owing to not enough oxygen reaching the brain for the same reason.