Yes, it without innovation, they are at risk of a competitor overtaking them by being innovative. Some of the examples you give are the opposite. They are mknetisstion of captured markets.

In the 80s and 90s, it was the same. Except instead of adding iot, they would add a small digital clock. To pencils, cases, bags, fridges etc. For some, like microwaves, it stuck. For others it didn't.