As someone who works in this industry, yes your examples in #1 are clearly thought out, but I'll offer you some rationale why they're not feasible. You simply cannot prioritize the mental well-being of PCPs whilst also offering after hour and weekend care. It's an oxymoron. To offer open walk in days you'd have a 3 hour wait before the clinic even opened. And group visits? Not sure what you mean by this but it really doesn't seem HIPAA compliant. I know I'd personally never be seen as a group for a medical concern.

I do strongly agree that we need to incentivize more people to go into primary care, but sadly it's just not flashy the way specialties and sub specialties are. On top of that, you commented on the burden being a PCP has on one's mental health, when you could make double or even triple that as a specialist, it's rare to chose the lower paying option.