Same. I have only a few apps installed that my phone didn't come with. No games. No social media apps. Even email I access via Safari. If I absolutely must use an app for something, I typically install it, do what I need, and then delete it.
If you're on Android, you may enjoy the new "Archive" functionality, which uninstalls the app but retains its local data directory so when you tap the icon it re-downloads the apk on top of its existing data directory, so no more first-user experience https://support.google.com/googleplay/answer/15523443?hl=en
I believe it's primary use case is storage efficiency but it works perfectly fine in your use case of preventing the code from running while you're not actively using it
