Yeah, what happened to the GP5000s? They were originally fairly easy to mount or dismount, but for the last few years, it's very difficult to get the first bit of bead out of the rim to dismount them. Pushing or pulling with fingers and/or thumbs. Ow. I have "tubeless ready" rims, where the bead pops into the channel with a loud snapping noise when first mounted.

I used a hair dryer on medium to warm up the tire the last time I wanted to remove it at home. That helped a lot. It seems easier dismounting a GP5000 on the road, where I suppose the tire is slightly warmed up naturally.
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I asked the local bike store what tires are easier. They basically said "none of them are easy"