It can be tough to do, I finally just got off Google photos backing up my pictures and videos maybe 2 weeks ago.

I already had them also being sent to my PC with resilio sync, but since I moved to Linux I didn't have backblaze anymore (B2 is too expensive for me and their "unlimited" cloud backup is mac and windows only) and didn't know of any affordable alternatives so I wasn't willing to drop my only cloud backup even if it's Google.

Eventually I canceled the annual storage plan and said "I'll figure it out by then", didn't figure it out, found jottacloud after that and am now using that.