I don’t know for sure how or where the projects are saved (locally or in server too), so please correct me if I am wrong.
I only make maps for my own pleasure / play with friends - I never plan to publish it.
Recently, I made a game in the Tilted Towers POI, and just the base island (buildings, etc.) took over 70% of the memory. I’ve reached the 100k limit and I still have things to do, but I can’t because of the limit. I can do them in the Unreal Editor but can’t in the game, and sometimes it’s more comfortable to do it with the phone in-game.
Would it be possible to remove the 100k on local projects and just have it as a limit for maps you want to publish?
In summary, you would only be able to publish <100k maps but you wouldn’t have a limit on local projects.
I know that you can add as many things you want in UEFN without limit, but the limit still applies in the Fortnite session as you can’t add things with the phone.