New posts from users you are following will not come in notifications. Notifications include reactions, follows, replies, and quotes. To view new posts, please use the timeline.
Antenna is a feature that reacts to specific words and collects them. It does not appear in a notification widget, but in the same format as the timeline. I'm sorry, but I'm not familiar with AiScript, so I don't know if the plugin will accomplish the purpose. I myself use the timeline to view new posts by users I follow.
As you may know, if you want to create a plugin, please refer to the following site, where you can find a light explanation of AiScript in Japanese. (I apologize if there is a site that explains it in English.
AiScript | Misskey Wiki
This reply is generated by DeepL. If the answer is not what you expected, or if the reply is strange, please let me know. 😁