Samsung TVs have a Game Mode motion interpolation that has a surprisingly low input lag. (~22 ms or so). I don't know of any other manufacturer that does.
It's not a game mode option, as game mode disables it, but enabling interpolation on my ~10 year old Sony TV adds 33ms of latency - which I think is acceptable given the results it produces:
Note: it's being interpolated to 120 FPS and not 60 - so it's smoother than a YouTube video can show.
The problem is that it's adding 33ms on top of its base level of 55ms in game mode - and that alone is high enough that I don't enjoy playing games on this TV.
If it was 33ms on top of a new TV with a base latency of about 8ms in game mode I think a total latency of ~41ms would be acceptable for the results that it produces.
Obviously 41ms is not ideal, but neither is playing a game at 30 FPS.
While I know that many here dislike it, I hope that TV manufacturers continue to improve interpolation quality and latency.
I wish that reviewers would actually try to judge the quality of interpolation instead of telling people to disable it.
Try to get used to BFI for 60hz games, I have been playing what I can at 1440p at 120fps and playing my 60fps games with BFI and it clears it up beautifully as you get a much higher motion resolution you need to get used to the loss in brightness tand a slight flicker though, you do get used to it though.
Yes, BFI is going to make a huge difference for 60 FPS games if it's operating at 60Hz.
One of the changes with the 2020 models is that they can now run BFI at 120Hz.
What I hope is that it will be possible to display 60 FPS content using 60Hz BFI, with options for 4ms, 8ms, and 12ms persistence (8ms being the only option for the 2019 and earlier models).
It would be very bad if 60 FPS sources were displayed wtih 120Hz BFI, because that reduces flicker but also loses most of the benefits of BFI (clearer and smoother motion).