PANiCnz: Don’t use the app, you need to replace the firmware with Tasmota or similar. Google a piece of software call tuya-convert.
Sure, but I supposed I need to somehow be able to connect the plug intom my network first, right? How do I do that without the app?
Also, is tuya-convert linux only?
No it doesn't need to connect to your network first. Tuya-convert creates an AP that the smart plug and your smartphone connect to, you put the plug into paring mode and it connects to the Tuya-convert AP allowing you to overwrite the firmware. Once the plug is converted to Tasmota it creates an AP, which you log into with your smartphone and configure your wireless network etc.
As far as I'm aware its Linux only, I've done it using a Linux VM and a RPi.
With earlier plugs it was actually advisable not to connect the app as it upgraded the stock firmware. Its only recently that this newer firmware can be overwritten by Tuya-convert.