Twitter link is broken or smth can’t see it. Its hard to trust this page, especially because I don’t know what they mean with “data”, which data do they mean? And especially because they never mentioned wayland I dont see this as the newest security analysis.
I don’t want to say that Linux Desktop is secure, but I don’t know how secure it is with wayland.
Generally the way you get the Software makes Linux in practice by accident more secure as no users manages to get insecure packages through official repositories or other sources except tarballs not from github. Even tho github can also be insecure but its still more security compared to an random .exe or unsecure Edge browser.