Where can I find dashboard widgets on OS Catalina? Here's what I'm talking about: 



I couldn't find it anymore, I used to set it as a hot corner in System Preferences > Mission Control, I tried to search the keyword "Dashboard" in System Preferences but ended with no luck. Did Apple remove Dashboard on OS Catalina? If not, where can I find it? Thanks a lot! 

Edit: 
Seems like dashboard is removed from OS Catalina (thanks to the comment linking to other similar questions!), Is there any way to put dashboard widgets on desktop like it's shown in this video? 

UPDATE: 

Is there a way to get the Converter Tool somehow? (the widget that can convert currency, length, pressure, weight all in one!) Recommendation of similar Apps is welcomed too!
Dashboard nor Widgets are available in macOS 10.15 Catalina. Since Widgets are not available I don't think the question of how to place them in the video is possible.