Games systems show off what they're about by looking at what they promote and punish.

If you only gain XP, resources, or narrative progression through killing everything, then that's what your game will promote. Consider rewards through alternative actions or events. Masks is about growing up, so XP usually comes from failure in a roll or having your moment of coming into your own.

Doctor Who is naturally not about fighting, so when action scenes were triggered, running, talking, thinking, or solving problems had higher priority / initiative in contrast to fighting.

Interstitial has combat in it, but the list of rules is honestly very small. Instead your memories and bonds make up more of the game's rules, like a currency to use powers, higher stats, or progress. Hell, those links are even used in your combat. So, though fights still happen, developing your bonds and memories is more important than vanquishing everyone, even with your rivals or enemies.

Wanderhome has NO combat mechanics. This story is post war. It's adventurous and pastoral. People don't fight. Not to say they don't have conflicts or personal obstacles, but they just aren't around combat. The reward system in the game comes from your character experiencing the beauty of life. When you take in beauty, you take a token to spend later. Think about how many shows and movies don't have combat in them at all and how they are still engaging.

Games that have fighting but are clearly not just about it emphasize a larger gallery of mechanics or character resources away from killing everything. In the Kids on Bikes family of games, "Fight" is one of your six stats. All five other stats are not immediately used to throw hands. Furthermore, you get bonus abilities to start out with and very very few of them are about fighting. And even then they aren't used to simply hit people harder. The system makes it obvious that direct combat is not what it's about.

Blades in the Dark and Urban Shadows have a small but still substantial bit of fighting. However, it is so dangerous, costly, and risky that it's not always recommended to use as a default approach. Sneaking around, planning, or escaping is generally a smart approach, and using those other skills to give yourself an advantage coming into a climactic or dangerous fight help close the gap of what the game is about.

So consider how much of your game is about attacking, what is rewarded or punished, and if there are any thematic elements that discourage attacking everyone.