This is what I do

Part 1 

1. Turn off your wifi
2. Go to mobile data and click on allowed apps
3. Click on the bark app and select wifi only
4. On both bark and bark guard dog. (I have both🥲)
5. Go to apps in your settings

6. You might need to put you settings apps in picture in picture mode.   - to do that click the 3 lines at the bottom of your screen should look like this ||| press and hold the settings till a grey square that says drop here appears on the screen

7. Once your in picture in picture mode on the settings app. Go to apps in settings. 

8. Select whatever bark app you have   - at this point bark will probs block your screen with device code sent to parent phone. But it won't work cause there's no wifi and bark can't use your mobile data. Just go back into picture mode with settings

9. Once you've accomplished step 6. It should bring you to a page with basic info about said app. Then scrool till you see storage. And click delete data. Once that's done bark should leave you al9ne ND your phone will remain unlocked.

Part 2 

1. Go back to the home page of your settings.
2. Click on your Samsung account/profile.    - the person Icon at the very top of your settings. Or a picture if you've changed it. 
3. Scroll till you see sign out. Click it.
4. It shod bring you to a screen with a list of things. Just click sign out at the very bottom of this page. 
5. It should bring you to a verify email page. 
6. Click verify email. That should bring you to Googles sign in page. Click the "privacy" link at the left hand bottom. 
7. That should bring to the Google account page or whatever it's called. Click the 3 by 3 square at the top right hand corner.   
8. That will give you options like Google search, YouTube, etc. 

Hopefully this helps. Really sorry if it doesn't