So a couple of years ago I moved back to Lithuania, but my Google account was still bound to UK. The guides I used to change the country did not work and I did not have an option to change the country as described in the Google documentation. I had to do a few extra steps:
- Delete the Google Family group
- Change my phone number associated with the account to a Lithuanian one
As soon as I did the last step, the option to switch to Lithuania appeared on my phone’s Settings 
Now I just need to wait and see what content will no longer be available for me as it takes 48 hours for the change to happen. I have a few games I bought for my kids to share with, but the most important one is obviously Minecraft! Fingers crossed it’s still available to install 😅