Same issue with me and it’s the swollen battery. Using the generated gap it’s much easier to separate the screen and then either to replace the battery or puncture the film of the swollen battery so that it recovers the original shape. If done within one day just place the screen over the original adhesive tape and voila.
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Of course not recommended to puncture the battery but was OK for me for emergency use (take care not to overheat the battery during charging and better than breaking the screen) and then replace when new battery was available.
Same issue with me and it’s the swollen battery. Using the generated gap it’s much easier to separate the screen and then either to replace the battery or puncture the film of the swollen battery so that it recovers the original shape. If done within one day just place the screen over the original adhesive tape and voila.