SSEs are more lightweight, since they are only one direction. If you're only interested in pushing events from a server, this could be a lighter solution that WebSockets.
I'm reading a w3schools document where they talk about Server-Sent Events technology It is described as a system that allows you to send web pages from the server to the client So by reversing the normal data flow, it is no longer the client who has to query the server but it is the latter that...