Windows 10 License - Indefinite license

Hope you all are fine, have a nice day guys,

Windows 10 operating system is Windows as a service.

Windows 10 Retail version
-can transfer a license to another computer

Windows 10 OEM version
-An OEM license is locked to the first computer you install it on

Question needs to you that in such case If you have a Windows 10 Retail version, does this mean you can keep on replacing your PC hardware in the future and use this license forever and it doesn’t mean that never need to buy a new Windows operating system license again in your lifetime since Windows OS runs as a service.
Automatically you don’t need to buy the new services… Which will come through the new one…
Any applicable suggestions for me to correct this issue and to gain back my license which is most necessary to me
Thanking you in advance
Have a nice day, guys