DisplayPort Alt-Mode is important for when you smash your phone but you _need_ to access data that is on it. Maybe its your photos, text messages, or access to a banking app. Without DP Alt-Mode you're going to be waiting for a screen replacement to ship, with DP Alt-Mode you're just plugging your phone into your dock like a laptop.

Personally I would have seriously considered this phone if it wasn't for the lack of DP Alt-Mode. It would be a tiny portable Linux computer with an unlimited internet connection available anywhere. It would be the perfect thin-client. My cellular plan limits my tethered bandwidth so using the phone as my computer rather than as my computer's modem has real benefits.

I saved al my sons data from this Samsung S10 using their Dex thing after his screen broke. Was really nice.

FP6+ would have been a no brainer for me if it had such a feature (would need to work on /e/ though) for some light dev work. Still going to buy one though (just messed up my iPhone 12 mini cams and faceID with some of Malaysia's high humidity.)