If you are stuck with a device containing the RTL8723BS (soldered on), you cannot replace the internal chip. However, you have two options:
For Debian/Ubuntu (and Raspberry Pi OS): realtek rtl8723bs wireless lan 802.11n sdio network adapter
The is a highly integrated combo chip. It is not just a Wi-Fi adapter; it is a combined solution that handles both wireless networking and Bluetooth connectivity. If you are stuck with a device containing
Operates exclusively on the 2.4 GHz band . It lacks support for the 5 GHz band, making it susceptible to congestion in urban environments. Pros RTL8723BS: Combo NGFF1216 User 'S Manual | PDF - Scribd realtek rtl8723bs wireless lan 802.11n sdio network adapter