Email Arrival Indication

I am sure you'll be shaking your heads at this somewhat crass question, but Hey! easy is what you know.

I'm a newbie having got fed up with MS (who doesn't) and transferred my allegiance to a new Mac Studio.

Excellent move, but ...

With a PC, I could set up my email client (Thunderbird) to ding me when a new email arrived.

Can't seem to find out how to do this on the Mac.

I'm sure such an obvious facility can't have been overlooked, but for the life of me, I can't find it.

Help?