I got the same issue after a fresh install on RPI3b+.
Tried several times since i thought it was som error during installation. Also tried downloading image and using Balena etcher instead Raspberry imager but same issue.
Finally i just tried ctrl+F5 and all was back to normal
Reporting the same issue - not blue text on blue buttons, I think the buttons are actually blank - like the text isn’t being rendered. Def not blue text on blue background. I’m gonna reboot and cross my fingers but thought this screenshot might assist.
Same problem on fresh install of x86 on a PC.
Text missing, buttons missing.
Not consistent, as they show in Edge, but not in Chrome.
Please don’t make me flush the cache.