Slight audio pause switching between apps on Android

Hi all,
Has anyone else noticed when playing music and switching to another app there is a slight pause in playback. When I mean slight I mean like 1/2 second. It doesn’t do it when you switch between running apps with switcher but if you hit the home key and click on any app there is this annoying 1/2 second pause. e.g while music is playing just hit home key and open contacts, repeat. Also It doesn’t seem to be doing this for any other audio app (amazon, iheart, google, plex) and it seems like it just started doing this recently.