Yes, that is what I read, too. But a search for "SW2808S", and "SW2808" turned up no USB Power Bank controllers. After searching for pictures of "5V Step-Up Power Module Lithium Battery Charging Protection Board Boost Converter LED Display USB For DIY Charger 134N3P" I found a picture of an identical board but containing the "HOTCHIP HT4928S" chip:
https://www.aliexpress.com/item/5V-Boost-Step-Up-Power-Module-Lithium-LiPo-Battery-Charging-Protection-Board-LED-Display-USB-For/32818182292.html
This tends to indicate that the two chips are functionally equivalent. If you find other chips in that same board you might be lucky enough to find one with a datasheet in English.