cliffwade , 
I've spent a good majority of the day moving 750GB of files out of my Google Drive over to my @protonprivacy drive.
I've quit using Google Chrome(long long time ago).
I've quit using Gmail.
I've quit using Google Drive.
I've quit using Google Keep.The one thing that is just too damn good to quit using that Google makes is Google Photos.
While there are replacements, there's nothing that comes even remotely close to being as good as Google Photos in my opinion. Literally NOTHING!