@vicgrinberg looking back, I cannot help noticing that the next stage is to keep the TeX versions of a text in a VCS (e.g. git) and only look at the changes (not looking through the whole text all over again) when co-authors send you an update.

Then (in my case) one gets annoyed when co-authors needlessly re-format the whole text, rendering looking at the changes much less straightforward. (And the last stage for me was a serious burnout ¯\_(ツ)_/¯)