That's the thing about Manjaro is that you just choose proprietary and also during a kernel change to a new one Manjaro also updates the kernel headers and the nvidia drivers to the ones that work with that kernel.

I updated the drivers myself foolishly following the online guides to get smplayer with mvp to use graphic acceleration, spent 2 days then realized I fucked the entire system up and reinstalled Manjaro then went to the arch wiki and found Manjaro was using video acceleration with a simple terminal command and just set smplayer to VAPAU for the regular and hardware dropdowns and it ran great.

I made a huge good move though, I disconnected my 4k tv and put the old hdmi back on. Linux has got to get their shit together more on 4K since I couldn't even get Mint to boot the 4K tv while the advanced hardware version of MX booted up fine. Hit or miss with some hardware.

Back in 2018 or 2017 before grub2 was found insecure I had 7 distro's installed on my machine, 5 on the 10TB sata, 1 mx on usb stick and 2 on a usb3.0 passport. It felt good to have a choice and backup systems if one got so fucked it wouldn't boot.

So how is rEFInd or should I use the Suse boot menu that comes with the distro?