Professionals or hobbyists can still use a proper camera but the old maxim "sometimes the best camera is the one you have with you" often applies and cellphones do fairly well in that regard
And some phones have some excellent cameras. I've taken some pretty decent shots with my phone camera, like this one of a squirrel eating pizza. Without carrying around a camera literally all the time, I never would have caught that shot.
Same with many of the abuses that we've seen caught on camera recently. There are some problems with videos that lack context, but authorities can't just act with impunity in their face and expect to not have a camera in their face.
Yeah. I am a new-ish hobby photographer and at the moment I have a 50mm lens for my Canon R10 (I will buy a bigger lens soon). The camera with its current lens doesn't zoom well but my smartphone could sometimes take a better photo zoomed in depending on how I play with the settings, angle and lighting.