Right.
Both display types have different advantages, one display (OLED) has perfect black levels and the other (mini-led) gets insanely bright.
And from using both I have found there are way more situations where the 2-3x higher brightness is more beneficial than having a perfect black level.
Take Cyberpunk 2077 for example, this game has an insane HDR implementation and will take as much brightness as you can throw at it.
It has a 24hr day/night cycle and for 4-5hrs at night time, the OLED will be the better display as the perfect black levels show their strength (But it's still not a massive difference and not as big as you would think compared ti mini-led with FALD)
For the remaining 20-19hrs of the day/night cycle and where the having a perfect level black isn't a requirement (but high brightness is) the game will look better on the mini-LED, and the difference between an OLED with 250 nits vs a mini-led with 1500+nits is a monstrous, the OLED's don't get close.
There's other examples.....
Forza Horizon 5: The game never really gets dark enough for OLED's advantage to shine, but does take advantage of 1500+ nits, so wil look better on the mini-LED.
Ask yourself, how many games/levels have you actually played that are so dark a mini-LED monitor with 576+ zones would struggle?
The answer is, not very many.
In the right circumstances OLED is untouchable, but those situations are so few and far between that I do feel a mini-LED offers the best all round experience.
I did do some camera shot comparisons when I had my mini LED monitor (These were taken at night or with the blinds closed so is worse case for IPS glow with FALD off)
Returnal
Resident Evil 2
The Last Of Us
Dying Light 2 (You can see the light leaking from my blind in this shot)
EDIT: The mini LED monitor I had was a Cooler Master GP27Q.