I use Mitsuharu Yamamoto's emacs-mac-port, which has smooth scrolling: https://bitbucket.org/mituharu/emacs-mac/src/master/README-m.... Due to the way Emacs works, pdf-tools can't do "continuous scroll" mode. This doesn't bother me much because I always have PDFs set to show the whole page anyway.

I don't sync Org notes with my smart phone. But the nice thing about Emacs (compared to most other notes tools) is that file attachments are in your file system. One Drive's sync backend is very good and smooth, so it's easy to grab a PDF if I want to attach it to an email or view it from my phone or tablet.

> Do you have smooth scrolling in Emacs?

Yes, but one of the smooth scrolling modes was too slow for me and I use `pixel-scroll-precision-mode` which requires Emacs 29.

> How do you sync your work with your smartphone?

I use syncthing for this and Orgzly, emacs in termux, and organice.

I bet most would prefer and could get away with just using organice.