Hi @skmdab,
when you make questions here, please use the build in functions to give us all-ready enough information that we do not have to ask back.
You can use tags to give more info´s about your DE and about the version of Fedora.
or better,
Could you please give us more info’s as :
inxi -Fzx in terminal and post the output as </> Preformatted text here.
p.s.
I would give you the same answer as you already found in the other topics, just adding, might be that your computer is faster in booting as you are in hitting the keys.
Since you have failed to post the actual solution you determined I have to ask for verification and so others reading this thread can get a quick answer.
Did holding the shift key down while booting enable the grub boot menu?