Why can’t I buy gmail and just use regular @gmail? Would love all the features of GSuite, but a custom domain name I would pay even more to avoid. Unless you’re running a business, it looks bizarre. For some in the development industry / those who write technical blogs I can imagine that being useful at times, but still......
Go to https://gandi.net and buy a domain name you like with your name in it. I recommend something with your last name. <lastname>.me is a good one, or something more clever if you like.
It doesn't look bizarre, trust me. It looks extremely professional. Even on CVs, this alone will get you past some filters. And the domain name is $5-10 USD / year, it's nothing.