Re: Does anyone still use GMail, or Hotmail?
"So, does anyone know a reliable and cheap email only hosting company?"
Depends what you mean by "cheap". A few quid a month gets you Proton Mail, and I assume there are plenty of others at a similar price point. If you want to use your own domain there's a certain minimum of tech-savvyness required, but connecting said domain to an email host doesn't really add anything on top of that. If you're genuinely too poor to afford £50 or so per year, Gmail spam filters are probably not one of your major concerns, but if you're not so badly off it doesn't seem unreasonably expensive. Would everyone suddenly jump ship from the likes of Gmail if the cost was only £30 instead? I doubt it; cost really doesn't seem to be the primary issue, other than in a binary "is it free or not?" sense.
Edit: As a disclaimer, while I do have a ProtonMail account, I don't actually use it for my domain since they're very restrictive on how you can use aliases. They seem decent if you just want basic email services, but might not be much good if you have specific needs.