Good to know. Then on Android and desktops (be they macOS, Unix/Linux, Windows), Brave uses Chrome UA user agent as role of mask, which is confirmed in my tests at https://www.whatismybrowser.com/.
Nevertheless the interpretation of the window system is there too incorrect.
The mention “X11” reported both under X11 and Wayland window systems tends to indicate that unlike Chrome UA, it does not have role of mask but is rather a misinterpretation indicating an issue.
The only package that is available in Fedora’s repository -chromium- is then the one i installed to perform that check. To execute to launch it: chromium-browser.
Like in Brave at brave://extensions/, at chrome://extensions/ the extension Fedora User Agent is present by default and alone in that page. Though unlike in Brave, it works there as intended by modifying the User-Agent string to contain the name of Fedora Linux distribution.
Enter chrome://version/ in URL field. Reported User Agent:
Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36.
first you complain about x11 /wayland then now your chrome show the same then now you talking about missing fedora os
which i said those fixed x11 cause to be looks like chrome
and your screen shoot is not the standard chrome
where did you installed that chrome from if it from fedora software store which i think it’s then it’s not the standard one
if it from snap or flathub then it’s not also the standard one in the link i sent
say that Chrome (Standard) * Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36
no fedora or any dist preference mentioned
how i think it’s not standard cause the little fedora icon in your screen shoot
i really do not understand what is your issue and how that affect you
if those x11/wayland or fedora stuff effect you in any way then explain it