It sounds like it's upset about something with .NET Core 10 download/install or one of the other dependencies.
There are three dependencies for the newest versions - Application Request Routing, URL Rewreite, and .NET Core 10 Hosting Bundle - SM tries to install them on it's own but will fail/cancel if there's an issue. They can all be installed manually before trying to install SM.
Event Viewer may have log entries for failed Windows Installer issues --
MailEnable survivor / convert --