I have a friend who had to stop his career and move back in with his parents in his 30s. After an infection he was suddenly unable to read or do anything that requires visual fixation without intense pain. It took years to find a doctor that was able to help him at all and he's still not back to normal. This is an online anecdote so it will make no difference to you if you keep choosing not to believe it. But the idea that it is a purely online phenomenon with no real-world basis is absurd. It's been 6 years and there is a preponderance of evidence. The most common estimate is that it affects 400 million people worldwide.[1] Whether or not people want to talk about this to you in person is a completely different story. Covid is a societal red line that no one wants to bring up.

[1] https://academic.oup.com/ooim/article/6/1/iqaf010/8379704?lo...