

Honestly, dont take anyones recommendation. It takes 10 minutes to create a bootable USB for a Linux distro once you get the hang of it. Try a handful of different “easy” distros and desktops on a Saturday morning and pick one that seems to work well on your computer and that you find you like. What you find intuitive isnt necessarily good for another, etc. A little time invested in shopping will pay off later (which is true for a lot of things).
Are you a native french speaker? Maybe you heard it differently from me, but while I am all for nuance, lets not sanewash people and take them at their word.
I use plenty of software where the developers are not primarily focused on security, but his line of reasoning sounds just plain dangerous for an OS developer. Maybe he phrased it bad, but that would be up to him to clarify and we shouldnt do that for him.