No, that's a scam. ReVanced will never be in the Play Store, you have to patch it yourself. There's instructions on the ReVanced subreddit and it's easy. And don't download premade versions either

Make sure you clear all caches and update the filters in uBO, that's the recommended way to prevent the message from popping up

Same with Opera, I miss old Opera with stackable tabs and before they got sold off to some shady company

Same here