I've often left my phone in my car, usually over a weekend where I've left it on Friday night after the drive home and only thought about it on Sunday night as I go to check my alarm is still set and then realise. I've also left it at work multiple times overnight i.e. left work and only realised, again, when I go to check my alarm or my car is quiet (no streaming from phone).
When I get in my house I put the phone down on a table and generally don't look at it again unless it makes noise (text, call etc) until its time for bed so its not unusual for me to have zero "phone time" at night.
I think because I'm nearly 50 I don't feel as "attached" to my smartphone as they've only really been around in my life since 2012 when I bought my first smartphone after my 10+ year old Nokia 5110 finally died and I thought a Galaxy S3 mini with google maps etc would be great around the Olympics (got drafted in for security for 3 months).
I think the only time I actually use mine is when I'm away from home and waiting for something or queuing i.e. car wash, doctors/dentist etc as at home I use my PC for the internet and at work mobiles must be locked away about 100m from my desk (work with military stuff) so, other than BT music streaming in my C1 vi an aftermarket stereo (RS6 uses an iPod) and an alarm clock, I've very little use for one 23:30hrs of the day.
Despite that I bought a S20FE 5G when I was in Saudi because literally everything was/is done via mobiles and 5G was the new hotness! God such a waste for I use it for