isn't extracting the partition is just unzipping it and locating the boot.img file?
unless you mean patching the boot image file via. Magisk, which I've never tried before, but hope it works.
* So, basically, any 'Redmi Note 10 5G' ROM listed should work well with 'POCO M3 Pro 5G' device as well?
* Is there a list somewhere with the differences between the different versions of the ROMs (Global vs EEA vs India vs China, etc)?
* Will it be a problem to use OTA updates after rooting? I'd have to remove the root, update and then use the same method to re-install Magisk?