I never get those on my tablet or phone, but that is because they are
generally gimped compared to a desktop or laptop computer (even though there is no real technical reason they can't do what a "proper" computer
can , the marketeers demanded these hobbles). If you are using a
"proper" desktop computer, Google must ass-u-me the user is some Ev1l SpAm 73rr0r ha>0r and must prove they are innocent.
(Yes, I know what our forefathers said, but right now they are bound and
gagged and dressed in a silly clown suit, proverbaly speaking. Not even
the peasants take seriously or care what they had to say anymore. Citizen
Rights? That is so last millenium!)
If you are using a browser where you can change the User-Agent string
that it sends out to match an Android browser, you may be able to
get around this, but be prepared to to be bombarded with "This
stupid web site works best with our app!" messages, or be locked out
entirely from some sites by this until you change the string back.