All MacBooks prior to the 2015 generation and MacBook Pros prior to the 2016 generation work fine with up-to-date Linux distributions.

Newer ones might still have some limitations like:

- stuff might not work out of the box and needs manual setup (keyboard, Bluetooth, NVMe, Touch Bar, ...)

- internal Audio not working (MacBook Pro >= 2016)

- WiFi not working (MacBook Pro with Touch Bar)

- Suspend not working (MacBook >= 2015, MacBook Pro >= 2016)

- Battery draining significantly faster than under macOS

If you can live with these limitations you can use a MacBook/MacBook Pro very well full time with a Linux distribution of your choosing.