The Boomers are largely gone now from tech. One former manager of mine was 65 when I left, she retired a year later at 66, gone. Unfortunately, most of the roles those people held were not back-filled. The roles vanished, too.

Anecdata: I spent quite a bit of time driving around office parks in Eagan, MN. Most of them are dead--really, really dead. Vacant offices everywhere, the hotel that used to cater to business travelers is shuttered and the parking lot looks like a jungle. I can't peg exactly when all this took place because I haven't worked in that area in several years, but probably the effects of 2020, the remote work culture, and now the layoff hangover. I see a lot of people in their 50s and 60s working retail jobs right now. They often look like folks who would have been working in an office someplace.