At the following link under related links the ST-MCU-FINDER-PC trys to open a app on opensusehttps://community.st.com/t5/stm32-mcus/how-to-use-vs-code-with-stm32-microcontrollers/ta-p/742589All others work fine.
The user manual can be found on this page, it covers everything you need to know. https://www.st.com/en/development-tools/stlink-v3set.html#documentation
Thats not a STM board. It's something the Chinese whipped up that most likely does not have a legit STM32 micro on it. Documentation will be hard to come by for that board, and support will be minimal if any at all. No USB port so you will need som...