Thanks dark_pyrro
Sorry this is so late. Spam filter rule added.
I've tried Firefox & Chrome on PC, Firefox & Chromium on Pi's and Firefox & Chrome on mobiles in desktop and mobile settings. So far the only work around has been to zoom to extremes and go back to 100% but it hasn't always worked.
Pi's have been on 1360x768, 720p, 1080p. Phones are all 1440p. I can't get down the stairs to check the PC. All addons are disabled for the Pineapple except Dark Reader - once I knew it wasn't affecting the pages I enabled it. It's darker than the Pienapple's dark mode.
If I can't set column width, is there a way to limit the OUI string length?