#2 is pretty much the OP @angrytigerp
Atmosphere-rated fighters that are short-ranged bricks in space & chunky transports that almost lose to mining drones, but they give a smidge of extra ground power
Practically it would be easier & better to just get a dedicated troop carrier or two, but it could get a niche in small-fleet ops & with the headcanon crowd that would pack them into the dedicated trooper. Aint no way a big honkin stinkin goose of a cruiser is going to give the same kind of precise, close-in ground support a couple wings of aero-fighters & transports could. It could knock down the big ground emplacements sure, but you'd have to park the thing a mile away and tell the cyborgs to carry a couple extra batteries after that.
Pretty much this.
Spaceships are built for space (and IN space).
Atmospheres (even something comparatively tame like mars') are a whole different and very hostile environment (suddenly there's pressure crunching down onto the hull from every direction, and there is STUFF everywhere that might have phsical or chemical reactions with some materials or with your engines). So if you have fully 100% optimized a fighter for maximum performance in a 0G vacuum environment, it'll pretty much stop functioning immediately upon entering atmosphere.
Similarly, if you build an atmospheric fighter and throw it out into space, it'll just float along dead in the water and stop functioning immediately.
So if you built a hybrid, it'll be terrible at both space combat and atmospheric combat. Which means there's no reason for there to be a hybrid fighter LPC (since it'll be worse in every way than a talon while being waay more expensive), it's entirely fine as it is in the shape of a text-only thing (ground support package could include some atmospheric planes, helicopters or hunter-killer drones that get deployed alongside transporters full of dudes).
I always find it so weird when scifi spaceships just effortlessly land and take off from earthlike-atmosphere planets. Especially if they're ships that have lots of little bits and bops (antennas, thin cannons, glass front windows) that would be in danger of crushing/breaking during landing or if they're weirdly shaped un-aerodynamic bricks but still somehow fly in straight and stable paths in-atmosphere, or if they're ships that are so absurdly flimsy that they explode instantly when someone looks at them angry (such as tie fighters).