I see a lot of posts where people are being contacted on their days off and then they engage their work, on their day off.
Yall need to stop doing this, it's pointless and honestly there is no reason for you to keep answering, explaining, solving your managers problems.
So having said that, I give you two different links on how to mute your iPhone or Android phone!
I use UBlock Origin so I cannot tell you if there are popups or advertising on these sites but their content is correct. Obviously you want to adjust based on which version of Android you are using, IOS won't have the same issues in regards to settings locations.
Remember, stop allowing your employer to interrupt you much needed day off. The only purpose your employer has is to pay you money so you can live your life.
There is more to your life than working some job that only cares if you are an active cog.