MicroLED will likely never happen on phones. The reason every MicroLED display is 100+ inches is that they can't stack the LEDs any closer. We'd need two to three orders of magnitude of progress in how close they can be stacked which is unlikely to happen considering the pace at which the tech is currently evolving

At the end of the day the slight off axis tinting you get on OLEDs is a very very very small price to pay for the massive benefits the tech brings in terms of picture quality

Also Micro LED displays cannot bend like OLED. The reason they could make a foldable screen is that MicroLED is produced in small portions of screen because yields aren't high enough for full display-size boards. So they have to assemble the smaller boards together to make a complete screen. This is a problem because the seams can often be visible on the finished display. Basically the folding MicroLED TV that was shown is just several displays moving together and aligning themselves.