No they do not. Glock makes the same exact gun over and over again with hundreds of different barrels and grip length combinations, and everyone acts like they reinvented the wheel.
Glock makes whatever, and people will buy whatever they make just because Glock makes it. If Glock chopped an inch off of the Glock 43's barrel and grip, gave it one finger groove, painted it FDE, only gave it a 3 round capacity, and named it the the Glock 43 Minus, there are a large number of gun owners who would trample one another to get it. They'll convince themselves and try to convince everyone else that it's the greatest thing since sliced bread.
Other firearm manufactures have to innovate, constantly evolve, and compete whereas Glock knows they do not have to because their fanbase will buy their product regardless and a 3rd aftermarket party will do the innovating for them to fill any gaps that you'll get out the box with the competition.