My phone (samsung A20) has a 32gb of internal storage which almost always stays full.. all of my media is in SD card and the app data that is in internal storage
128GB Micro SD Card For SAMSUNG GALAXY A01,A11,A20, A20s, A21, A21s Mobile Phone | eBay
Best Buy: Samsung Galaxy A20 with 32GB Memory Cell Phone (Unlocked) Black SM-A205UZKAXAA
Amazon.com: Samsung Micro 32GB Evo Plus Memory Card Class 10 Works with Android Phone - Galaxy A20s, A20, A10, A70 (MB-MC32G) Bundle with (1) Everything But Stromboli MicroSD & SD Card Reader :