How to use Apple Mac keyboard shortcuts, seamlessly

I am using Ubuntu 20.04 on a MacBook Pro, using both the internal keyboard, and an extended external one: UK version, numeric pad, arrows keys, function (fn), home end up down, and with f13 to f19. I only installed the minimum Ubuntu without tweaks for the moment, and I move step by step to get my workflow with Open Source / Free Software that I already use on Mac OS, with no more proprietary software. That is my goal. I am searching for an ethical and sustainable laptop, with open hardware too, but this is another story.

I successfully installed kinto.sh on my admin user. It is a superb implementation, thank you Ben Reaves

But for my standard user, without admin privileges, it is not available. I appreciate that the install on kinto is on the admin user side, so it is not a surprise. With my little system admin skills, I cannot find a way to make it work for all uses of the Linux install.

Note: I kept the habitude, from using Mac OS, and when I have to work on Windows, to have a standard user for every day work, for each person, and to only use the admin/sudo user for maintenance, installs and updates. I find it safer, isolated, and necessary for privacy concerns.

1. Please could you help me to make Kintosh work for a standard user? I will be glad to test and help writing the necessary explanation for other user, like me, who wants to achieve that. (issue also posted on kinto.sh GitHub)

2. Please could you point me to alternative solutions? I've searched here and on search engines, but I mostly found the basic switch between Cmd <-> Ctrl, or very old answers, not working in 20.04. At least I need the main Mac shortcuts like Cmd+C V or X, Cmd-N and T for New window or tab, for my thumb and my muscle memory!

As I am not an avid Terminal user, I can compromise and use Ctrl instead, and not having the copy/paste in the Terminal. I am sure it would be very useful for average users, using Linux without developer or geek skills

(this is my first question on Ask Ubuntu / StackExchange, after reading so many good solutions, I wanted to say thank you to the ones I like, and I am finally contributing a bit)

This will be addressed in a future update of Kinto.sh (am the author). Also Kinto installer already sets itself up in a way to prevent the need for users to type in their root password everytime - and is only needed because of uinput, the plan is to add uinput to a lower privileged group/user though to avoid that. I just want to carry out some thorough testing on various distros after making the change.