I tried to follow couple of them, after a while it felt like everyday I am reading some newsletter. At this moment I completely stopped, because messed up my time management skills after having kids. Need to recover
Then I just go through it every couple weeks either when im waiting around on my phone or when I find myself wasting time on reddit or hn but dont quite have it in my to jump back in to dev work just yet.
Between topics not being interesting to me, overlap in covered topics by each newsletter, and overlap with things I've already seen here; the vast majority of content that hits that folder doesn't ever actually get read. I'm yet to find any source of news, tech newsletter or otherwise, that warrants reading on a daily basis. Closest would be the weather.
in addition to tech you can also add long form journalism from authors/magazines you trust, usually these things tend to be more analytical and not related to the current thing/hype.
I have also unsubscribed to a bunch as they have too much for me to casually consume. Pragmatic engineer one is great that it has a single topic and goes deep into it. Level up one is great as it has some great insight in the introduction and then it's more of a pointers to articles that I might click or not.