Bitcoin has proven to be consistent and reliable over the years with measures made available to secure our assets from malware attacks by providing face verification, 2FA, email verification and the likes.
Nothing special about this. Even bank applications makes use of this.
you didn't even mention any reason why Bitcoin can or has the potential to overshadow Fiat.
do you think Bitcoin can overshadow the relevance of dollar in the future?
It is already but many just ain't aware of it.
Many now know that Fiat falls and how it performs in relation to inflation. So they would rather hold Bitcoin or equivalent (not Bitcoin by the way) than investing in Fiat.