What I did with mine, which was very well stuck… Can’t remember if I posted all of this in the last thread.
With a tyre on and inflated, I placed blocks of wood under the tyre, then stood on the tyre (so that all my weight was on the wheel/tyre). Then, with a large ring off an old cassette attached (very hard to get a grip on a whole cassette but you could probably do this with just the spider’d part of an XT or similiar, I used some orrible OEM thing) I pulled up, with a lot of rocking back and forth. I never got a hint of movement by any other method but it was easy enough by this approach.
Also, if you’ve not already get it up to room temperature, that’ll slightly soften the seal.