Would anybody be willing to explain in simple terms how this works - getting paid by a website via an Ethereum wallet?

I signed up with a well-known legitimate site to get paid posting clips of streamers to social media sites but found out the only way they pay is to an ethereum wallet, which I have never heard of before. I am not familiar with how to use cryptocurrency at all.

I've spent the whole morning trying to find info to understand how it works, called my bank and spoke with someone who told me I can't convert it into real money to deposit it with them, etc. and it's still all just Greek to me. I'm wondering if it's worth bothering with.