Just a bit deformed that’s all…

fun fact for those who didn't know the g1 toyline was actually a bunch of licensed redeco's of other pre existing toylines.

More specifically GoBots (Correct me if I am wrong)

You're right gobots introduced molds that would later be used for bumblebee, gears, warpath, cosmos, power glide and huffer.

Diaclone however introduced most of the molds used for a huge sum of the autobot toys and the most popular examples were optimus prime and ultra magnus even the ironhide and ratchet shown in the picture

There was also Microman molds as well.

it spawned a subseries called micro-change that had molds later used for decepticons like megatron reflector and soundwave

What about Starscream Thundercracker and Skywarp? Were they Diaclone?

yes