Last time YouTube wanted to verify my phone number it was easier to find a free service to receive SMS than for Google to deliver it to my actual phone. And Google didn't care I "verified" a number assigned to other side of the world.
It's becoming increasingly hard to find a service that lets you see verification messages, and even then google doesn't like a lot of the numbers those services use
What happens when they ask for you to get another code to that same number, though? Can you access that number again?
If you create an account from another country, since you can only send the sms verification from that country, locks your account to that country for at least one year. I created a US account years ago and it still is US. I don't even spoof my location.
Be careful. Google once locked me out of an account that I've owned for over 10 years one day. My username and password were correct, but they randomly flipped 2FA on (without my consent) and sent the recovery code to a phone number that I switched away from years ago. It was completely unrecoverable. There's absolutely no way to get in touch with customer service. Never make an account with them unless you're not willing to lose it randomly to automated bureaucracy.