I was about to go start the transfer process. How bad of a time am I in for?

Took two days to get any authorization codes. No idea how bad the actual transfer will be. Ugh.

Also, and perhaps Google will finally find this, if you are an OWNER on a SQUARESPACE DOMAIN after the GOOGLE DOMAIN TRANSFER, you can't seem to create MX or TXT or other records.

But if you ADD A NEW USER as a DOMAIN MANAGER then you can create the records, as far as I can tell.

Its supposedly a mandatory five day wait after you initiate the transfer with the code. I had to contact support since the transfer code button wasn't making any requests to their server despite the modal saying it did.

It took me a total of two weeks to complete the transfer.

I didn’t need to contact support, but the process requires patience … and some downtime as I had no way of knowing exactly when the transfer happens to recreate the DNS records.

I transferred 6 domains to porkbun and it was about 2 days to get the code and 5 days to transfer. Mostly painless, but DNS records were not copied over. I tried to see if I could manually copy them over in advance, but I got an error with porkbun. I probably didn't know how to do it correctly, but I needed up with a couple minutes of downtime. I don't remember having to do anything when I went from namecheap to google, but that was a while ago.

I'm migrating to Cloudflare

You can setup alternative nameservers first, they clone current DNS settings, then you update nameservers. Do the transfer after.

This worked while they were at Google Domains and about to be transfered. Haven't tried with squarespace yet, but it ought to work

Thanks, I will try that next time I have to migrate.

I transferred from Google Domains to Porkbun and it took about an hour. Half that time was changing over my dynamic DNS updater on the server

I had a couple of .dev domains on Google Domains. Unfortunately, you can't migrate those to another registrar as the .dev TLD is locked to Squarespace. I wonder if they will ever unlock the .dev TLD.

I was just able to finish transferring out my .dev domain from Google to Cloudflare. I had started the process when SquareSpace first took them over but forgot to finish until I saw this, but I was able to transfer out my .dev domain!