I’ve only felt the need to change distros once, from Linux Mint to EndeavourOS, because I wanted Wayland support. I realize there were ways to get Wayland working on Mint in the past, but I’ve already made the switch and have already gotten used to my current setup. I personally don’t feel like I’m missing out by sticking to one distro, tbh. If you’re enjoying Mint, I’d suggest to stick with it, unless another distro fulfills a specific need you can’t get on Mint.
Came here to post because I’ve also seen The Symphony of the Goddess live. The poster for it is behind me at the moment. Great experience.