1 - Actually widgets are all on the same view.
I think would be better to have the widgets section in left bar be expandable similar to other sections, showing under a list of the widgets so we can make widgets full height and switch from a widget to another clicking in the left bar.
Otherwise the actual mode to use widgets it’s often a real pain.
2- I am a developer of a web app and usually my clients use emclient and use the widgets to show my webapp hosted in their lan.
Often (every minute I would say) they are manually copying and pasting content from this web app to calendar events, tasks or emails.
At this time I am really considering in the next year to add some functionality to my web app to manage tasks and events (I would happily avoid to do all this work if not necessarily), so probably usage of emclient in my userbase will drop.