Ask HN: Experience with using a personal email with a non-standard TLD?

I just bought a Georgian (.ge) domain for a domain hack and would like to use it as my personal email. I am not Georgian nor are the people I'd be sending emails. I've read horror stories here before about companies needing to change from e.g. .xyz to .com so their emails aren't flagged as spam by Big Email Providers.

If you use a custom domain with a non-standard TLD for your email, have you experienced any issues like these before? Do you think it was the non-standard TLD's fault? I've seen people claim, for example, that using smaller email providers can also cause issues.

I know very little about how emails are flagged as spam, so I'd also appreciate any advice you'd give to someone who has only used a Big Email Provider for all their life and would like to now switch.