You can download the launcher / patcher from the following link. This is the easiest and most efficient way to get into the game and keep it patched. (As of 1/26/2021 6PM PST we have no detections after appealing to Microsoft)
If you prefer not to trust the launcher you can simply install the game manually using the .7z file. This method will result in no detections but you will have to check in when there is a new patch. Instructions are included.