Yeah that’s really strange that it would also affect a non 5g device if that fix worked for me. Also strange that it doesn’t seem to be a wide spread issue. One of my friends who has the same phone, same network, has zero issues at all.
Weird! It’s really annoying! Almost unbearably. I can’t miss text. Hopefully Apple reaches out again with someone that knows what they are talking about. My worry is this is one of those bugs they never fix.