What do you think of "forgotten" tech stocks that are past their peak/cultural popularity?

* MongoDB was hot in 2017 era?
* Dropbox was big around 2010-2015?  Cloud kind of took over after that.
* When did Roku peak?  Now, it's just the norm?
* Snapchat peaked in 2017?  Stock peaked in 2021.
* Peloton & Zoom was hot in 2020-2022.Paypal was innovative in 2005, when Ebay was big (pre-Amazon shopping)
* Hood, Roblox, Figma, Reddit, Shopify still popular/peaking?

Each is case by case. Some are stable utilities? Some are dying ships? Others may rebound (like MSFT 2015)