Not at all :)
I use a mobile app on my phone, and the browser on the computer.
While this data is somewhat outdated now, here is the data from a census we ran for lemmy.ca over a year ago
https://fedecan.ca/en/announcements/2024-02-10_censusResults#_3-8-mobile-interface-usage
We didn't include an option for web browser usage that time so the numbers are likely off, but we plan on fixing that next time.
The apps have also evolved a lot since then, so I'd go off of lemmyapps.com for judging popularity