From a personal perspective, I prefer the phone for sound quality. I have poor hearing, especially when it comes to understanding speech. As such, I make sure to own a high quality phone with an excellent speaker-phone. The sound on the computer just doesn't compete, and it makes my experience a lot more difficult.
4K webcam (Logitech BRIO), Blue Yeti for the microphone + a pop filter and a shock mount, and my noise cancelling headphones. All together they cost a fraction of what my work laptop does.
No one complains about my audio. Except when teams decides to randomly switch back to the built-in laptop mic which is hideous as it's right next to the cooling fans...
Oddly, various VC tools I've used with dial in properly map the caller unique pin code to the calling user.
People calling in from a phone is a separate issue.
If everyone had a nice camera, nice microphone, and nice headphones (I think all three of these should be provided by employers to remote workers), and just used the video conferencing software the way it was designed, a lot of the friction and annoyances would go away.