Either I got really lucky or people without issues just don't post threads.
I've been using my 2019 MBP as workhorse for 8hr/day the last 4+ years. I use the upgraded 5600m GPU a lot. 64GB RAM. I think this laptop was comparable to the M1 in terms of GPU power (just uses more electricity).
My fan isnt on that much unless I'm actively rendering, exporting batched photos, or doing realtime video effects. Computer is usually connected to a 27" apple studio display and is very quiet when just browsing web, watching videos, and emails.
I'm still using this laptop daily and I'm just starting to get the itch to maybe upgrade. But the machine doesn't feel that slow yet. I do a lot of work in Photo, Web Development, and video effects rendering in realtime (for live events). This laptop still performs great.
I believe the 16" MacBook pros that were upgraded to the 5600m GPU were clear of the problems the lower grade GPU laptops had. This GPU was an $800 upgrade originally, but well worth it for my use. So if you can find one with a 5600m GPU go for it. Maybe I'll think about selling mine when the M4's are released...