Syag, I agree that in many circumstances there is no need to test, especially w/ latest variant. I did not test so far. The reason to do home test would be if one heads to a meeting with either many people or an at-risk person and are going to be in close contact there. Then, a positive test – right before the meeting – would prevent risk. Not fully clear what does negative test mean. On one hand, stats say that those home tests are detecting 60-90% of cases. The claim on the other side is that they detect those who are most infectious at that moment, i.e. they detect the most dangerous ones.
There is an article on front page about the Rav who tested positive before his son’s wedding – after symptoms? Now, say the test would be negative – how would the grandfather pasken? Or maybe the father would not have even asked? Maybe they should do N-95 veils for kallot.