Foldables seem like a better compromise here, and hopefully more like the zflip/razr get in this $700-800 range with stock android, good cameras, and decent battery life. The zflip 3 has been sold for $800, just give me stock android and I'd be a buyer. I'd be ok with a slightly slower processor if it means a better battery life, but within 10-20% of a flagship. Between a $450 6.1 inch Pixel 6a, or a $700-800 folding phone, it's going to be kind of tough to compete with a smaller slab phone if it's going to have to make more compromises to stay small.

I'd love a Nexus 4 sized phone again, but these aren't bad options, if you want small, go folding, or get a 6a. I'm sure the mini is a good option if you're ok with iOS.