I might not worry so much
per se, but it definitely is a weird thing to learn for a lot of people. I had to do a lot of things with other objects to get remotely close to it for disc golf. Slashes, hammer hits and throws, punches, chops, little weird "pull/swing" motions emphasizing smooth but abrupt and powerful weight shift that are fundamentally the move like this recently.
Power comes from a lot of sources. Balance, momentum, internal torque building up and getting released, body countering the action of the arm and disc, moment of inertia, ground force reaction in the plant, muscles and fascia stretching and contracting hard and elastically, stop of forward momentum/redirecting into disc, and so on. People will argue about the details and proportions but that's all the good stuff. General advice that has helped me the most is get as much as you can from all of those things before raw strength/muscular demands. E.g., my move is increasingly more "athletic" but is decreasingly effortful as distance goes up when learning here. Not sure if that's how it always is, but I like it from a longevity perspective.