Choosing between canvas and normal 2D gameobjects

Hello,

So I'm currently working on a 2d game with lots of narratives and small puzzle mini games(mainly drag and drop mechanics), the game also should have a sort of pathing and tweening systems.

And I've been wondering if I should make the mini games using unity's UI since it uses the event system and that would make things easier for drag and drop and related mechanics, or normal gameobjects on the scene for easier position manipulation and particle effects.

Small note: during the mini games my camera will be fixed

Is there a recommended way of doing things or more concerns going forward with either approach? I would love to hear other people's opinion wether it's better to use unity's UI or just normal 2d gameobjects for gameplay,

Thanks in advance