For ME, the XL carries SIGNIFICANTLY "easier" than a G19. There is a delta in shootability, yes, but it's not enough FOR ME to make it worth toting the larger pistol. YMMV, of course, and probably does.
I recently acquired a Macro grip module and a couple of mags. Haven't tried them yet, because the weather here has been unspeakably foul for the last several weeks. I'm hoping the Macro grip bridges the performance delta between the XL and the G19, but, it will likely be a "range only" grip for me.
ETA: here's the visual of the G19 vs the XL, fwiw... https://www.handgunhero.com/compare/...-g19-gen-5-mos