When downloading the exe launcher (not the MSI), common practice in the past was to simply place this on the desktop and run from there. Or leave somewhere like a "minecraft stuff" folder, and create a shortcut

Doing so with this new launcher results in:

• A "tmp" folder being created, and eventually left empty.
• A folder filled with what appears to be the launcher GUI elements
• A folder containing an unnecessary Java environment.

This results in a mess on the desktop if run there. Or even possible data loss if existing files match the path the launcher uses.

The correct behaviour IMO would be:

• Check for existing suitable JRE (64/32 bit, too old, etc).
• Refuse to run if existing JRE is known insecure.
• Use existing JRE if found.
• Prompt user before downloading custom JRE.
• Use normal Minecraft path for data storage.

Ignore the JRE bit if this is now a forced policy from Microsoft... But the folder spam is not acceptable.