I use my iPhone X for everything these days. Since I retired I have zero need for a lap or desktop. My Macmini is a ‘10 and can’t support jackshite at this point in time so is basically a typewriter and paperweight LOLConvenience. I used to think the same way, but my Internet access has become about 90% iPhone now ... and I’m only using a 6s-sized device (soon to be 8-sized device) ... so not one of those “monster” phones.
As for buying a Bolt, I lined everything up to purchase a 2020 (and then a 2021), but then cooled my heels on the idea partly due to the fire issue, but mostly due to the charging speed.