Personally I find smartphones less and less useful. I use them mostly to stay in touch with people or to read articles online, and I do all my work from a laptop anyway. I used to buy flagship Android phones but I realized that it's wasted money. Now I have a 200€ Samsung phone, it works fine, yesterday it fell and the screen glass broke a bit, I couldn't care less.

If I keep going at this rate, I think I will quit smartphones within a few years.

Get a server or some hosting, load it with whatever you need - mail, web, cloudy things, media, communications etc - and use a portable terminal to access it when on the move. That portable terminal can be a phone with a browser or some future device which is more tailored to this type of application. With the current generation of SoC, Wasm and a capable browser (Firefox Nightly Preview is shaping up nicely) this setup is a viable replacement for most 'apps'. One of the advantages of such a setup is that those 'apps' do no get to track your every move - that is, as long as that capability is not built into the browser at some stage (persistent web workers etc).

iPhone SE is iPhone 8 on steroids.