I have a Pixel 4 XL and today I noticed that every so often when I unlock my phone it will open to some scammy chrome tab. I use Firefox most of the time so I don’t know where this malware came from. I’ve tried deleting history/cookies and it hasn’t worked. I can’t delete chrome because you can’t do that on Pixel devices. Anybody have any advice other than doing a factory reset?
You can try checking your Chrome bookmarks and the homepage settings for anything unusual. Then check your apps for the same. Other than that, I think a factory reset is probably the best way to deal with it, because if it’s actually malware then who knows how far down it’s embedded into the system.