I don't find laptop keyboards reasonable. They are a last resort.

Thinkpads group their function keys. Who outside apple doesn't?

Thinkpads also have nice keyboards, so are hardly representative of laptops in general.

And in line with the other commenters, my corporate HP and Dell laptop function keys aren't grouped. Fortunately, I interact with both through a nice external keyboard.

My HP laptops don't. It's been ages since I used a non laptop keyboard and I forgot about grouping. It's a useful UX though.

Dell.