Help- annoying popup ads

[Android Central Question]

Hello all, I am getting these extremely annoying popup ads on my galaxy s9 plus. The whole screen just fills up with an ad ( like for kayak randomly) recently got one with a small popup that said ad in the upper left, for music ly and a green arrow. Just popped up out of the blue. How do I get rid of this crap?

 

[B. Diddy]

Welcome to Android Central! Does this only happen while browsing, or even when you're just on the homescreen or in another app? If it's only while browsing, the ads are likely related to the sites you're visiting -- avoid them. If it's outside of browsing, then you probably installed adware unwittingly, alongside some other app. Uninstall apps one by one until the problem goes away.