I am not sure that OLED "offers many more disadvantages" as you indicate unless you are someone who is bothered by PWM flicker. Most of the other issues conventionally associated with OLED panels are either overblown imo or have been mostly resolved over time by manufacturers. Most longevity tests I have seen actually have OLED panels earning significantly higher reliability ratings than LCDs, on average. I've owned many OLED devices including phones, tablets, monitors, and TVs over the last 10-12 years and never had any of the issues you are describing, even after long term use. Granted I am also not someone who is bothered by PWM flicker and don't watch static content for extended periods of time on any of my devices.
I for one am VERY excited for a 120hz OLED iPad mini. My current mini is the only screen I use regularly that isn't an OLED 😂