The Mac ICC printer profiles listed in Keith's G550 review have now been tested on Windows and can give improved print results for colour and black & white...

The key is to use them as usual in your print software (Lightroom or Photoshop for example), but not to turn off colour management in the printer driver - normally on Windows, you would turn off printer colour management [none].

If you already have Windows icc profiles for the G550/650, they should continue to be used in the usual way.

The review is at https://www.northlight-images.co.uk/canon-g550-printer-review/
It has links to all of Keith's G550/650 videos and articles.

Email Keith directly, at Northlight, if you would like to experiment with them - they are free for non commercial use

Making your own profiles for the G550/650 is covered in Keith's [~35 mins] video
https://youtu.be/qv59fVYTp4I