Do I need to notify Epic before I release completely free niche misc non-games

I don’t even know yet what I’m going to do in the scope of the project described in this question, I had some vague ideas but it’s a momentary thing and it already went past, it can come back and there’s room for many others to pop up.

These never meant to include any kind of revenue or even donations, they’re just too small, they’re also just visualizations to get a point across in a discussion, the topic of “construction” is a huge one, how many technical things are in that is just huge, and if you try to explain or show one mechanic, one little part in some super specific case, you don’t need much of design that would make it “game-like” since there’s no game to it, it could be interactive, but it’s just not a game.

Nor I don’t know what I’m going to do first, even if I do a serious project in UE4 in the next months, I might still get back to such projects described here in the future, so it’s really separate to me and will not apply at all when I publish a serious project, because when doing a serious project I am okay with all the requirements, that was never my problem at all.