As a user I say suck it up. Notarization and 1st party QA will make users lives so much easier. I have yet to see people run into serious issues with either that weren't doing things that entitlements/signing were designed to prevent.
The $100/year dev license kinda sucks if you just want to hack around and distribute code, but it also goes a long way to stopping people from creating spam accounts and evading bans. But it's a pretty trivial burden, if you're distributing software professionally and can't cough up $100 in revenue in a year... maybe try your hand at something else or just go the amateur route?
I also don't get complaining about obsoleting 32 bit. Use obsolete software on an obsolete OS in a VM like the rest of us, we all hate supporting things until the end of time.