Hmm interesting question. I guess for me the closest thing is option 3.
I feel like combat has an important role to play in DnD and many other role-playing games, especially since a lot of the rules in any system are usually for combat related stuff. Just look at any DnD Character, about 80-90% are combat related stats and abilities.
But just because there is a lot of material there it doesn’t mean that combat should be the main focus of every group. You just have to try to find the perfect balance of RP, story and combat within your group. Some players really like fights others less so.
Some (most) players at least occasionally want to flex all of their combat abilities and skills, which is understandable as they are part of their characters just as much as their backstory.
For example: A barbarian who never goes into a wild combat rage just feels wrong after a while. It feels like some part of their identity was taken from them.
In my case/ in my current campaign I’ve made it an unofficial rule for myself to make sure that combats happen on occasion BUT only if there is a reason to fight.
i.e.: I as the DM will only initiate a fight if the story calls of it. (or my players are really asking for trouble)
I also tend to try and mix RP elements into the fights if possible. Even if it is just smack talk.
So yeah. Summing up: While I also enjoy the RP elements more than combat segments, combat in moderation gives most games a really nice change of pace as well as a feeling of catharsis, especially if you are ending a story arc with a final battle!
As for battle maps: General rule of thumb for me is: If there are a lot of people/creatures involved in a battle you will need a map at some point to avoid confusion, unless the space is very limited (if the battle is happening in a kitchen for example) because in that case precise positions don’t really matter anymore. For everything impromptu theatre of the mind is the way to go.
Also: You can invest in a bunch of minis but I didn’t, some sort of tokens you have lying around will do just fine as most of the action will still be happening in your mind regardless. (although I will concede that it is nice to have a physical representation of your character)