I have uninstalled kernel 5.9 via dnf remove, and I have also re-generated my grub.cfg using grub2-mkconfig, but the GRUB menuentry for kernel 5.9 still persists.

Any other way to get rid of it ?

I cannot understand the format of the grub.cfg file hence can't modify it manually.

I tried to find menuentry sections but I could only find 1:

menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
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