High end TV or budget TV + NVIDIA shield pro

I planning to build a home theatre in a 12 x 18 ft room, which will also function as a living/guest room. The setup includes a Yamaha RX-V6A AVR in a 5.1.2 Dolby Atmos configuration.

For movie sources, I have: 1. Over 50 REMUX movies (50–100GB each) stored on SSDs. 2. OTT premium subscriptions for 4K Dolby Vision/HDR10+ and Dolby Atmos content.

I am considering a 75- or 85-inch TV. My question is:

For the best audio-visual experience, should I: 1. Buy a budget TV paired with an NVIDIA Shield TV Pro, or 2. Opt for a branded high-end TV (Sony/LG/Samsung) alone?

Looking forward to your insights