I’ll agree the Glock 44 is probably a better pistol for shooting a greater variety of ammo if you want a Glock 19 size pistol. Since the OP already owns the AA 19/23 LE kit it does make a very good 22 LR pistol if you can find Aguila SE or CCI ammo. I have run other ammo in my AA kits but get the best reliability out of CCI and Aguila ammo.
Before Federal and Winchester rimfire quality control got terrible I used to shoot a lot of 36 grain plated HP 550 round bulk packs from Walmart or the 525 Federal Champion bulk. Decades ago my go to ammo was Remington Golden bullets whether Round Nose or Hollow points.
With the availability of cheaper Glock compatible frames I have purchased three Combat Armory frames and one Dagger frame. I personally like the Combat Armory frames better as they fit my hand better and fit in my holsters. I’m addicted to 22 rimfire handguns and really like Glock pistols.
Here is a picture of my Advantage Arms Gen 1-3 19/23 MOD optics ready kit on the Dagger frame.
Here is a picture of two of my AA kits on Combat Armory frames. The bottom pistol is an Advantage Arms Gen 4 19/23 LE kit with Glock factory night sights. The top pistol is my Gen 1-3 AA 19/23 LE kit with Glock factory night sights. In the middle is my AA Gen 1-3 MOD kit. I had a RDS on this MOD kit and decided I didn’t like the RDS.
Here is a picture of my AA 17/23 Target kit on a Glock 17 gen 3 frame and my AA 26/27 LE kit on a Glock 26 frame.
Here is a picture of my Glock 44 top, Gen 4 19/23 kit on Glock 23 frame middle. On the bottom is my AA Gen 3 19/23 on a Glock 23.3 frame.