I wouldn’t say obsolete because that implies it’s not really used anymore.
I’m not sure where you heard someone use the word “obsolete” that way, but I assure you that there are thousands if not millions of examples of obsolete technologies in constant and everyday use.
I’m not sure where you heard someone use the word “obsolete” that way, but I assure you that there are thousands if not millions of examples of obsolete technologies in constant and everyday use.
https://www.merriam-webster.com/dictionary/obsolete