One day I checked some Vivaldi updates, and took a chance. Itchio isn't officially supporting mobile for theme editing, but I used it anyway. In Vivaldi, there's an option to scale images seperately to 90% in the Accessibility menu. It works for Android, but I wonder if anyone got the Theme Editor button displayed on iOS or on the Pinephone.
github.com
For a while, I started to prefer an another web browser on Desktop, [Min](https://minbrowser.org) (besides Firefox). It's based on Chromium, but uses Electron for the interface. It's been around for a while, but I only discovered it a few years ago. So this year's August, it got an early support for opening multiple pages on more than 1 window. To become a stable feature, it will take more time. However, Min's main developer had less free time to work on the project from September. 