There are active communities dedicated to Linux and Linux support. Those would be better venues for this question.

Ubuntu should have keyboard shortcuts in the settings panel. You can go through and change them manually to match what you expect from MacOS.

This isn’t the right community for support questions, we’re more interested in questions that spark discussions. Please avoid posting similar stuff again, and try communities like !linux@lemmy.ml.

Cheers!

I’ve had a lot of success with Toshy a per application keymapper which runs in the background and does all the heavy lifting automatically.

I’m not the most experienced with Ubuntu, but the way that comes to mind is setting up shortcuts manually to try to match MacOS. It would be a bit tedious honestly. I’m hoping somebody comes along and knows of a library that already does that.