Questions about the future Asset Manager

[nokipaike]

I created a custom preset of materials (with nodes) and also brush for grease pencil and more … I tried to import them into my default scene and save this as default … but every time I restart blender, the materials and brushes reset …

My question is, will the new asset manager to come, allow such options?

[RonanDucluzeau]

When you save your startup file, those materials should be attached to an object or have a fake user and brushes should have a fake user.
Data that has no user is purged when file is saved.

[nokipaike]

please explain to me briefly how I should do …

edit :

ok now i understand … thanks for the suggestion …
I was aware of the fake users … but it had all crossed my mind that they could be used this way.