They barely talk with you and just waste your time in multiple online tests that you have to prepare for spending at least tens of hours. Those tests have problems that either you don't face in the day to day or if you do you would have more than 30-50 minutes to solve (anyone breaks jira tickets in 30-50 minutes intervals?!)
I believe for senior developers they must only get people who are willing to sacrifice their personal time to study leetcode.com and read elements of the programming interviews. To pass those interviews is an effort in itself and there's a whole industry to prep for them.
It's extremely sad in my opinion! As a senior developer who is happy with his job but would consider an offer from one of those companies I essentially won't ever compete with people farming leetcode as I have interests in life outside work hours that do not involve solving algo questions and I don't want to work at FAANG that bad.