Books are gone yeah... but come one...? They were rubbish anyway.
Camping is basically just waiting. There was nothing tied to it.
Strategic dialogue has been replaced by the army system - which I feel is a lot cleaner and more effective (but still needs work).
World building dialogue - there is as much if not more in bannerlord. All civilians give you short bits, lords have various statements on current events. Most Kings / Lords can give you their view on politics. The encyclopedia offers a huge wealth of world building which never existed in warband. This is still being developed though.
Inter Companion Relations - yeah this is missing but was an annoyance in Warband. We know somthing sort of along these lines is planned (as there are a few comments your companions make on your actions.
Right to rule - has been replaced by renown and influence; both much more visible and more versatile resources.
Right click accompany - okay yeah that would be nice.
Troops do receive morale penalties when at war with their culture.
Morale bonus is tied to food type (see food variety) under morale.
I mean, if you state that there are no features missing, and someone starts listing some, "they were rubbish anyway" is not a valid counterpoint. They were part of the game, and they were an option for players that were interested. Books, in particular, had a significant impact on character builds. They're now gone from Bannerlord with no counterpart. Camping was a more immersive way to pass the time and served as a vessel to perform other actions. Because all of those actions – choosing books, recruiting prisoners – have either been removed or streamlined, camping was obsoleted.
The army system has replaced the
marshal system, which is a welcome change – now you can't neuter a kingdom by imprisoning its marshal. However, strategic dialogue has no counterpart in Bannerlord without mods. In Warband, you could ask parties to patrol an area; in Bannerlord, you cannot direct AI parties whatsoever.
World-building dialogue is indeed present in the encyclopedia for a more streamlined experience. While I understand that many players prefer this, moving aspects to such a component outside the game-world reduces immersion. Not countering you on this, just my two cents. Subjective dislike.
Inter-companion relations refers more to the pre-defined companion characters of Warband. To be honest, that is a feature in its own right. Someone, perhaps it was you, stated something along the lines of having to just go from tavern to tavern just to find the optimal companions, but Bannerlord is the same but with even lower flavor. Going around and searching for Jeremus is much more enjoyable than looking in the encyclopedia for whatever copy-pasted the Knowing the game generates for me. Also, companions are also implemented very poorly in Bannerlord, but that is a discussion for another topic.
Right to rule is gone entirely from Bannerlord. Granted, RtR wasn't that significant anyway outside of adding higher value to "Because I am the rightful ruler" in defection persuasions. Renown was already present in Warband and was much more natural. Stuff like your party size and whether you could join a Kingdom, or even be granted the standard village if joining a Kingdom as a female, was determined by your renown, not by an arbitrary clan tier number. Influence is also arguably just a ****ty mana system that is largely disconnected from the world. You could be steamrolling battle after battle but have no influence because your character absurdly loses mass amounts of influence from vague policies.
Yes, morale bonus is tied to food variety in Bannerlord, but the morale bonus in Warband is tied to the actual food type. That's why I put it as a miscellaneous immersive feature. Beef and Grain would give you +7 and +2 morale, off the top of my head. Of course, your troops should be happier to have higher quality food types like meat. In Bannerlord, that translates to +1 and +1 morale.