55” to 65” TV, worse experience for 1080p Blu-rays?

[TotallyTuned]

I am still rocking a Sony X900F 55” from 2018. My question is this, will I notice a reduction in sharpness for all of my standard Blu-ray’s on a bigger screen like a 65” or 77”? I want to upgrade to a larger OLED but the majority of my collection is not 4K yet and I want to avoid an accidental downgrade in my experience. I sit about 8-9 feet from my screen. I have an x700 and ub820.

Thanks for any input.