I agree with this suggestion!
After playing multiple casual games I was able to figure out what loadouts I like to use after a few matches. However when I entered my first competitive match I was shocked to see that the loadouts are a bit different from casual. It would be nice to be able to customize loadouts from the main menu because it would give players time to think strategically about what to equip. This feature would also give new players a chance to see what gear is available to them before entering a match. I would be happy to see this implemented in the game!
Thank you for your time and have a nice day