well 2 things - macbooks suck, but particularly they REALLY suck for games.
So that's out.

Secondly the recommended spec is VERY high for a laptop.
It's not bad for an actual pc.

So it's not going to be cheap.

so we'll start with an ideal machine: https://www.amazon.com.au/ASUS-Computer-Quad-Core-802-11ac-Bluetooth/dp/B07W5T9G...
That s the dog's bollocks !
quite how they've got a 1660 ti into a laptop case without it melting - I have no idea.

I recently built a similiar spec system for a client in a case with 9 BIG fans in it, and heatsinks like engine blocks (small ones) !

If you plan on playing a number of games then an external usb3 drive is also a good idea for bulk storage.
I guess a fast usb stick or sdcard would also work. But the harddrive will be a lot cheaper.

'budget' machine: https://www.amazon.com.au/TUF-Computer-R5-3550H-Processor-FX505DT-UB52/dp/B07VCN...

Still a kickarse machine, but a LOT cheaper wthout losing too much performance.

Avoid intel based machines - expensive and amd have really kicked their arse all over the place in recent years

And that's pretty much it.

weirdly all the lower spec machines I found were MORE expensive than the second one I posted.
Go figure.

Still no clue how they've managed to fit a gtx 1600 series card in a laptop, without all the surrounding plastic melting every time you even look at a video.

But fairly certain if you actually use this on your lap - you will get boiled bollock syndrome (BBS)

And vulkan (software interface between the game and the hardware) loves both nvidia graphics and amd processors.

All pc users say Mac sucks it’s very much common knowledge. I’ve ended up getting a second hand pc tower I’m going to attempt to run it on , we will see, Baldur’s Gate 3 better have slings!!!