I put this in my taskbar which helped me stop running paru habitually. https://github.com/bouteillerAlan/archupdate
Can’t have grub problems if you don’t have grub. The howto is great, I’ve converted a few machines using it without any (subsequent bootloader-related) issues.
$ pacman -Syu
$ sudo !!
Umm... yay -Syu
Just 'yay'