It may be worth checking Motorola's OLED models in person (for example the Razr Fold, Razr Ultra and Signature) so see if their Flicker Prevention mode helps. I don't think any IPS models are likely to be supported in the first wave/generation of supported devices in 2027.
I have a Razr 2024 with the pOLED screen. It's bearable with Flicker Protection on, though not nearly as comfortable as an IPS. Heard good things about their AMOLED so will give it a chance if they don't support Graphene on an IPS model.
