Apple official website document reference:
https://support.apple.com/zh-tw/HT204904

There are various startup buttons for reinstalling Mac OS, please refer to the link above for instructions.
If you want to clear the data and reinstall, after many tests, I think there will be no problem using Command+Alt+R .
During the process, the space should be cleared first, otherwise the previously installed software will still be on it.

Note: Do not look for me if the reinstallation fails, this article is for reference only .