I can make small edits on my phone, and more importantly reread it to find errors. If I think of something at work, I can open in a tab. I can send my current draft to someone so they can add feedback inline. I can make changes based on their feedback, and don't have to resend them anything. Informal reviewers don't have to keep track of versions of my document, going to the url is always the most recent.

Even more importantly, setting up and maintaining a latex installation may not be a lot of time, but if you don't have much time, it becomes a bigger fraction of it. It's a big activation energy to get over if you don't have a lot of energy.

If you are writing papers regularly, then you may find it worth it, or easy to invest in your own setup. If you aren't, it is a lot to manage.