If you’re going for budget and this isn’t a Gucci gun built for flare, a factory OEM trigger is very capable. I didn’t even consider upgrades to my glocks until I had roughly 10-15k rounds through mine. A fancy trigger won’t make you a better shooter if you’re new to glock but again I don’t know what your intentions are.
If you’re in need of an OEM trigger group let me know. I have a spare one in my parts bin.
The only thing I always strongly recommend individuals upgrade almost immediately is sights. The stock plastic sights leave a great deal to be desired. Other than that, the gun is 100% serviceable out of the box.