This happens to me all the time as well as at a glance not showing weather. Unfortunately the only fix I know is to clear storage for the Google app. You'll need to reenable ok Google and maybe redo some other configurations after, but now playing should work again, at least for a little while...
Well you've edited the original post, but the quote shows a v6 cpu with a link to a v1. Which do you have? V6 is kaby lake and while not officially supported, it does have tpm2.0
Assuming you mean Celeron 1017u, that's a dual core ivy bridge with 2mb l3. Plenty fast. Get some used ram and you'll be good to go
Are you actually trying to send mail from your own smtp server? You mention apache and pihole which are completely unrelated.
Guessing you're not ipv6 only, but strace could still be of help: https://www.raspberrypi.com/news/host-your-own-mastodon-instance-on-a-raspberry-pi/