I still have a HTC One M8 in use for Android bug bounty hunting, used it as my daily driver until 2020 thanks for LineageOS folks never letting it die. Those things were horrible to repair (sadly how many phones aren't these days) but amazing little devices. I still miss having a phone that size to be able to use comfortably in one hand.

I had one of those too - quite liked it. I think I got that one after I stopped using a nexus 4. I had a temp samsung galaxy s9 for about 6 months that I hated and then ended up getting a pixel XL and have only really had pixel phones since (pixel XL, pixel 3a XL, pixel 6a).

I do miss the slidy keyboards on my old HTC phones - I think the first keyboard slider I got was an HTC Touch Pro still running windows mobile 6 because android wasn't a real thing then. That one required so much fiddling and rom stuff that LineageOS would have seemed like a beautiful dream.