Is it okay to use google play games 'save games' to store wether or not the user has purchased the full version of a game

I am building a game that has only few chapter free with the option to purchase the full version via a IAP. I will need to remember if that particular user has purchased the full version and restore his full game in the case he changes or login to another device. I know i can’t use player pref or serialized files so i am considering to create a data base and store the info on my server or use google play ‘save game’ function to save the info. is it safe or okay to use google play games save game functionality to store whether or not a user is premium or free? Thank you guys for helping me in advance. Love you all

Probably, if it’s cloud saved