Auto play is relentless!!!!!

I have a Toyota 4Runner and every single time I adjust the volume up

or down, my car will begin to play whatever was on my phone last. It is so freaking annoying!! This has been happening for years. I go to my phone manually close the app. I can turn Bluetooth on and off. Heck I have even removed my phone from the car and added it and no matter what, it starts to play wherever was last automatically when I touch the volume knob. I adjust the volume the tiniest amount and BAM my podcast goes back to playing. If I’m watching a YouTube video and I turn the volume up, BAM my Amazon music starts to play.

how in the world do I get this stop???