Steps to reproduce:
Click on "All Settings", and browse into the setting pages.
The transitions between pages shows a "white flash"; pages are loading really quickly, but the flash is there.
Not only between pages, but also in every other reload, like when switching the levels of personalized results.
Note that this flash never happens when we come back to the main search page, clicking on "kagi" on top left.
It's 100% reproducible on Firefox; however, never shows for me on Vivaldi and Arc (I don't have Chrome installed right now, but Vivaldi 5.4 carries Chromium 104)
No white flashing switching pages.
<Firefox 104.0.2/macOS 12.2/Italy/EUROPE-WEST2