Yes. They coexist peacefully. Install Desktop first, then Pro, or vice versa.
ArcGIS Desktop 10.8.2 is the latest (and final) release in the ArcGIS Desktop 10.x series. As Esri shifts its focus toward ArcGIS Pro, many organizations and professionals still rely on the stability and specific toolsets found in ArcMap. download arcgis desktop 1082 link
The most secure way to download ArcGIS Desktop 10.8.2 is through the official download arcgis desktop 1082 link