All the other companies do/will use LG Display's WOLED panels (Sony and Samsung also use Samsung's Display's QD-OLED panels) but there is factor to consider, LG Display has different OLED panel grades/tiers: I think 4 as of 2023. Thats partly why the A2, B2, C2 and G2 have increasing quality of near black handling and faster response times, among other differences. The processor/processing definitely matters too though.
If I had to guess thats due to the quality of the capture device HW and the encode it performs, then the added compression from the youtube encode and maybe also the way the youtube app handles its output.
What size is your C2 and what country are you in?
If its smaller than 65" or you're in the US there isn't really a great choice for MiniLEDs anyway: The Samsung QN95C has a fucked game mode and the Sony X95L isn't available below 65" in general and is 85" only in US. So that leaves the TCL QM8 but then you
have to be in the US as its not available in Europe, and besides it has poor EOTF-tracking giving an adjacently fucked image presentation/game mode to the Samsung and the Hisense U8K, I think the U8K is definitely better than the QM8 but Hisense has their own problems which may or may not annoy you, though I don't think the different response time tuning on the U7K I spoke of above affects the U8K at least.
If considering changing from OLED to LCD/MiniLED I would personally wait and see what 2024 brings for Sony, Hisense and TCL, the U8N and QM850 seem very promising on paper and Sony has said their 2024 flagship is a MiniLED with a (true) Backlight Master Drive successor that can reduce blooming massively.
I don't think Samsung can get their game mode back to how it was pre-2021 without increasing input lag or returning to the backlight HW/algorithm they used prior to the Neo QLED series (or whatever caused the game mode changes since the Neo QLEDs appeared) and Sony always seems to be lagging behind in their TV gaming features (ironically).
Even if Sony got up to speed in gaming features their relatively recent change of dimming algorithm philosophy to lighting up more adjacent backlight zones to preserve the creator's intent is an enemy of HDR gaming since many developers seem to be testing their HDR output mostly on OLEDs (from what I've seen of BTS videos and speaking to devs) and so they make HUD elements very bright and they float over near black content, which no FALD LCD can show without blooming unless the creator's intent is ignored or big dimming algorithm/backlight HW improvements are made.
Since they've literally said they
have made massive dimming algorithm/backlight HW improvements (a new drive IC in the backlight) this year heres hoping the Sony flagship is a revolution for LCD backlight control. What sizes it will be available in and the price remains to be seen though... the ZD9 (Or really any flagship 4K LCDs they've made) wasn't available below 65" and it cost £4000/£7000 in 65/75" at launch lol. Sony can set their own pricing when almost everyone consistently votes them as best TV each year (though not for gaming, but I'd definitely trade off the gaming features advantages of other brands for the best overall image quality).
Okay thats cola enough for me. Nah wait I changed my mind