Firefox works very well.
Gnome Web also and allows to create web applications very easily.
Whatever the phone used, if a website is not responsive, it is very difficult to use on a phone.
Like any new device, you have to learn how to use it, lose bad habits to acquire new ones.
And as we say in France: “Paris was not built in 1 day”.
If below a link with the software software you can install, it is documented for the French but it can give you an idea.
2 Likes