I know Manjaro has a history of f.ing up for no apparent reason. And my experience with Endeavour hasn’t been great either, mostly for the installer but the after installation experience isn’t that great either.
I can only suggest you try to install Arch manually, it’s not that big of a deal if you follow the wiki and know what you’re doing.
I suggest you get accustomed to it in a VM, then go ahead and do a proper install on hardware. I know it’s not for everyone, but to be honest if you can spend some time learning the process, it’s 100% worth it. I’m writing this from my desktop PC running Arch with the installation date being 2017-09-06. And I’ve only reinstalled the system then because I switched to an SSD. It survived a CPU upgrade and a switch from NVIDIA to AMD.