@Player_nv7bpp5n When I open the launcher, I just press Play, and then I choose my save and load it from the Main Menu without signing in there either. All my content shows up, every time. Again, I've heard from enough players that this doesn't work for them, but usually the only issue is that their store content doesn't work, and that can usually be fixed. It's still worth trying: load a new save without signing in at all, and see whether your store stuff loads too.
I'm not sure what you're asking about your game being secured, but Origin validates your ownership, not the launcher or Main Menu. Saves are stored locally, store content is installed locally, and any DRM gets the validation it needs before the launcher ever opens.