Earlier quoted context omitted.
You can go ahead and answer yes to all of those for any US airline and probably many non US airline, except maybe Singapore and the other top tier ones. But I assume that won’t be for long either.
It's sadly true for most. I have noticed that Southwest is a notable outlier in all this - they don't do any of that stuff. They also don't seem to register their flights on most of the search sites. It's like they know that those customers choose based on raw price alone, no room to sell any other differences. I make it a point to search their company site first before trying any other flight search.
Yeah, Southwest keeps their pricing info private for the most part. Depending on the route, you can do better on Southwest than basic economy on another airline (and you can check bags or whatever), but the lack of IFE, their route plans, and the fact that there is so assigned seating (which means you either pay for early boarding or save seats for travel companions, which the FAs refuse to do anything about), not to mention my aversion for the FA schtick are part of why I will only fly them if there is no other choice.