Video won't auto pause

When im watching a video in full screen and press the home button to exit the app i am watching the video in (for this instance safari). The video will not stop playing, audio continues and i have to either close the app or return to the app and manually pause it or leave the video just to make it stop. This never used to be an issue and i was wondering if there was a way to fix this. Or reset my phone back to ios 13.5.1 before i updated