Happy hunting, and enjoy the letter scene with the lights off and the volume up.
Here is what a genuine S02E09 Lossless file should contain: young sheldon s02e09 lossless
If you find a 4-6 GB x265 encode with FLAC audio (instead of the massive 12 GB REMUX), that is a "transparent" compromise. You get 95% of the visual quality with 90% less storage. Happy hunting, and enjoy the letter scene with