After almost a year of repeated emails stating the transition from Google Domains will have no effect on customers, no action is required; I just got this email:
Update Dynamic DNS records
Hi there,
As previously communicated, Squarespace has purchased all domain name registrations and related customer accounts from Google Domains. Customers are in the process of being moved to Squarespace Domains, but before we migrate your domain [redacted] we wanted to inform you that a feature you use, Dynamic DNS (DDNS), will not be supported by Squarespace.
So apparently SquareSpace will be entirely useless to me and I've got "as soon as 30 days" to move.
Got any suggestions for good registrars to migrate to?
(it's a .pw domain if that matters)
/edit. I'm a moron.
I already use cloudflare as my name server, Google/SquareSpace only handles the registration.
I'll be fine. Thanks for the help everyone!