The only reason i don't buy it is because it's too big. Particularly for a phone i would commit to for a longer lifespan, the physical design needs to be without compromise, and i know that the moment someone releases a half-way decent mini Android phone, i will drop whatever phone i have and buy that instead.
I had a Zenfone 6. It got a whopping 1 software update. It is otherwise a very nice-looking phone but that is unacceptable. And to my knowledge they haven't committed to anything more than that.
The smallest I've seen Sony recently releasing was the Xperia 5 V, which is 6.1". Similar to iPhone 15, S23, ZenFone and Pixel 8, just i think taller and narrower. I tried it in person, but it still felt 'big'.
Luckily if you are looking for an even larger phone for a scaled up keyboard, you have plenty of options. I don't have the same struggle with the keyboard, and would happily use a 4" screen phone if one were available.