There are a lot of 'ifs' here, but Google's proposed change of policy is probably something that some of us need to be at least 'aware of'. Personally, I have already filled mine up and taken out a basic 'paid' account, so hopefully it won't affect me. So if you have an Android based phone and use this facility, it might be worth a read....
https://www.howtogeek.com/700542/google-photos-loses-its-free-storage-what-you-need-to-know/
https://www.howtogeek.com/700542/google-photos-loses-its-free-storage-what-you-need-to-know/