I have checked how website looks like on old devices (MacBook, Mojave OS, Safari 12.1) And it looks very bad screenshot attached. I have thought that maybe this is because Litespeed optimisation, I’ve turned it off but result was the same. What to do, how to fix it?
It supports only the last 2 versions of the browser. The currently available version of Safari is 16.1: https://prnt.sc/aBbaXuRRBMJw , which means that the 12.1 version is not supported by WordPress.