Even if you can unlock your bootloader and install a new version of Android OS, you will still get screwed over by SafetyNet, good luck installing any banking apps.
They kept adding new features every year but once most people who had a sewing machine sales tanked.
The LiDAR on the iPhone is faster but produces less detailed models. Photogrammetry is slower but produces higher resolution models [1].
I don't know if I would drop $1000+ just for that though.
It improves general camera performance by having an accurate depth scan. Things like portrait mode and object recognition benefit.
The Measure app is quietly one of the most amazing apps in existence. You can get an accurate measurement of anything anytime! The lidar sensor makes it far more accurate and less finnicky than on the non-Pro phones.
Obviously on its own it’s not worth an upgrade but it’s a great sensor to have on a phone.