Yet another request for 4K TV buying advice

[Vilya]

I am looking to buy another 4K TV in October and I would appreciate advice and comments from anyone willing to offer them.

My current TV is a 60" LG60UH8500; it's an edge lit LED 4K 3D model from 2016 that is getting moved to my office. I have to keep it for its 3D capability alone.

I am aiming for something larger for my main viewing room, which is bright by day, but kept dark by night. I very rarely watch TV during the daytime. My viewing distance to the intended TV placement is about 8-8.5'.

My budget is $3500 or less. I want Dolby Vision support as well.

My current contenders are:

The 85" Sony XBR85X900F and the 65" LG C9 or E9.

I considered the Sony 950G models, but they score lower than the 900F in a number of areas like contrast, gradient, color gamut, color volume, and motion handling although not by much. The 950G is a little brighter and it has a wider viewing angle than the 900F.

The 900F has 4 HDMI inputs, but only of 2 them support full bandwidth 18 Gbps.

The 85" screen size is really attractive, too.

The LG C9 and E9 appear to mainly have aesthetic differences between them other than the latter having nicer built-in speakers which I won't even use.

I can only afford these in the 65" size, so I would not be gaining much in screen real estate. My concerns with LG OLEDs are the ABL issue, image retention, and burn-in.

I mostly just watch my discs and I do some streaming. I use an over the air antenna for TV. I have three old game consoles, but I very rarely use them.

So, do I buy a massive 85" full array LED with none of the above worries or do I pursue the smaller 65" OLED for its perfect black levels? I am undecided. I am also open to other makes and models if they meet my $3500 or under budget.

Thanks for reading and for any advice.