For me it is only an issue with Firefox, and Win 10. No issues with any other browser or operating system. 109.0 64 bit running under Win 10 21H2. Build 19044.2486. Firefox under Win 10, for the last month has had an unusual number of updates. Like, one every three days. These updates coincide with the issues of display problems. Each update clears all the cached site files. So it has to start over, and first visit to this site after an update, it seems the first CSS file calls are not accepted and the site rendered by Firefox is old school HTML with out CSS. Me thinks Firefox might have gotten hacked, and they know this, and the hack is through some sort of redirection of CSS files?