How do I deploy my personal website from flask?

I just finished working on my personal website that I made via Flask, which I've been testing on a local host.

I've done a good amount of research on web hosts and have a domain that I bought awhile ago from Google Domains. It looks like iPage or GoDaddy would be my best options, but there is still a lot I'm confused about. The free trials for the web hosts I've tried out seem to be just website builders and don't have the option to deploy already completed websites.

Here's my questions:

1.) I have CSS, Python/Flask, and HTML files that I want to move to MyNameMyLastName.com. How do I make that happen?

2.) Can the domain I bought from Google Domains be used elsewhere?(GoDaddy, etc.)