So, I’m using the regular free Grist-hosted service, and this has been an issue as long as I’ve been using it: anytime I go to Import from Google Drive or Send to Google Drive, it pops up the window to Sign in with Google, even if I’ve signed in before on the same device, even just a couple minutes prior.
I’m still able to complete the operation I’m trying to do after signing in again – it’s just an annoying extra step.
I do have cookies enabled and I don’t have this issue with any other website.
Thanks for reading!