Yeah this is not true. First the cert is only used on some government sites, no mitm anywhere. Also if you don’t like the cert there are other ways to authenticate yourself, for example using your Id on a electronic reader or normal auth with user name pass and 2fa.
Then it’s wayland fault haha! Nah, hopefully it gets better!
Are you on x11 or wayland? For me x11 behaves really bad on these situations, and wayland is much much snappier.
Just get endevour for a good arch experience without the hassle.