Hi,
The IModularFeatures/IModularFeature interfaces are widely used in UE and Fortnite. They aren’t going anywhere soon. You are encouraged to use them. I’m less familiar with the modular gameplay, but I was not able to find bad press on slack and it is widely used if Fortnite as well. So I’d say it safe to invest time to learn the system and leverage it where it makes sense for your game.
Here some others link for you:
- Modular Game Features: What you need to know | Community tutorial
- https://www.unrealengine.com/en\-US/blog/modular\-game\-features\-in\-ue5\-plug\-n\-play\-the\-unreal\-way
Regards,
Patrick