Heya, I apologize as I know this is over a month old, but I’m having this same exact issue, and was wondering if this was ever resolved?
My site: https://www.bytesizebasics.com/
However, I’ve noticed that it does not happen in my Galaxy S6’s default web browser, but it does happen in Firefox mobile app and the Adblock Browser app. I haven’t tried it in any others.
Let me know if I can provide anything else or if there is a solution to this! I’ve had users complain about my site has “messed up formatting on mobile”.
Thanks,