CloudFlare provide APT or YUM packages for #Linux. You're on #Arch (#Manjaro)? Well, I hope you like the terminal!
I am more resourceful than most, for I suspect the majority of current Windows 10 users would be stumped at that point. I happen to know that I can enable the AUR repository for some more software and there is a build script provided there: https://aur.archlinux.org/packages/cloudflare-warp-bin Note how in the first comment that it won't work until you use the terminal to enable the service.
Regardless, something is amiss, as even when I enable the service and reboot, it's not the same UI as on Windows and doesn't even seem to be the same program. It wants me to sign in to some corporate web interface and not just enable secure DNS tunneling via a simple toggle. Here, I am at a loss.
I have installed Linux 5 times now, but now I need to change to another distro that uses APT or YUM, but *also* has working hibernate!
Now, the current state of obtaining third-party software in #Linux is much like the warring states of feudal Japan with no clear Nobunaga (https://en.wikipedia.org/wiki/Oda_Nobunaga) yet to unite the Linux software ecosystem. I don't really have a recommendation here for Manjaro, or #KDE; this is a fundamental problem with the lack of binary stability in Linux software but a lot more consideration should be given to end users who just want to run software and less attention to warring factions trying to be the one true standard (Flatpack etc)
#LinuxIsNotReadyYet