No that is not true.
You’ve always needed admin rights to modify the HKEY_LOCAL_MACHINE hive, not just in Windows 10.
Blog post says: HKEY_CURRENT_USER\SOFTWARE\Microsoft
Which doesn’t need admin rights.
This is true, but you should be making the change in HKCU as Julian notes. You’d only make the change in HCLM if your app is getting installed with Admin permissions (in which case, you have admin permissions and can modify HKLM).
I have learned some things here about the registry - thanks contributors.