Can it cause boot issues? i need to boot into windows too sometimes. And which software can i use to browse the efi partition?
Windows will not boot with this method. By renaming the file back to bootmgfw.efi windows will boot again but now linux won’t boot. There is no clean solution, other than switch to different computer that doesn’t have this issue. Because of issues like this I don’t recommend dual booting. Installing only Windows or only Linux is more manageable for not-tech-savvy people.
can that work that i enable windows boot manager and manally add the garuda entry to it?
Never tried that, though a quick search got me this: https://superuser.com/questions/1471937/how-can-i-add-a-bcd-boot-entry-for-linux-in-windows-boot-manager-in-efi