I was a HUgE GURPS fan but the complexity isn’t my fav. I drifted away in 3rd and only played 4th a few times. I always loved the simple original boxed set of GURPS.
I didn’t know melee was free. Gotta try it.
I think you'll enjoy it. I've run GURPS Lite a few times. Players tend like it far better than GURPS All The Options at least in my experience. On account of real life not to mention 2020 I haven't sprung it on my players and to be honest I've be planning to get that big ole box set at some point to celebrate being able to game face to face.