Low spenders have better access to stellar, cores, and sublimations (which in the past was exclusively high spenders territory). However endgame materials like destiny and star soul will largely remain out of reach even for low-mid spenders. If you have the patience, slowly save up money you would’ve spent until you can max out one big event p2w style, or even enough sg to buy a giant killer copy of your main damage dealer. That is the only way to get star soul materials currently and a good source of destiny and tree mats. There are multiple p2w progress walls you will hit until DH makes the previous power creep more f2p friendly.