Thank you for that.
I looked at the board’s schematics and the datasheets of the 2 ICs and it appears to me that the module is powered off of 5V directly. No diode used.
Or are you suggesting something else? Would you be so kind to elaborate?
My understanding is that 5V gets fed by the USB connector of the Xiao to the charging IC which charges the BAT and feeds the 3V3 regulator. When the power is sourced from the battery the ETA6003 directs current from the battery to the regulator and into the 3V3 of the Xiao?
But I think my question is answered. Since there is no diode to be found, the Xiao can be powered directly from 5V. Kinda curious as why Seeed does not follow their own suggestions in the Wiki?