How to see is taking up space:
https://www.howtogeek.com/206591/how...ndroid-device/
https://www.howtogeek.com/112356/5-w...ce-on-android/
https://lifehacker.com/memory-map-sh...oid-1682596420
https://www.techrepublic.com/article...devices-space/
https://www.pcworld.com/article/3080...id-device.html
https://www.cnet.com/how-to/5-tricks...android-phone/