Programming.dev Meta

Just noticed that on my (low-end) laptop I get fairly high CPU usage from the browser tab for https://programming.dev

So thought I look what it's doing via Chromium's DevTools and there is a constant stream of activity. Looking at the websocket messages, it looks like it's syncing all messages from the server (even for communities I am not subscribed to) to my browser tab (probably every time I reload the page?)

Seriously, that can't be how it's supposed to work - and certainly won't scale? What is going on? Any ideas?

Just one random message from the Websocket (and I am certainly not subscribed to "animals"):

{
  "post_view": {
    "post": {
      "id": 85854,
      "name": "Happy sunday from those two sunshines",
      "url": "https://feddit.de/pictrs/image/af5f9c55-a257-46a5-8f5b-01a19b13239f.jpeg",
      "body": "I will try not to overload this community with pictures of the guinea pig gang, but I can't promise anything.",
      "creator_id": 34228,
      "community_id": 350,
      "removed": false,
      "locked": false,
      "published": "2023-06-18T10:36:43.876949",
      "updated": null,
      "deleted": false,
      "nsfw": false,
      "embed_title": null,
      "embed_description": null,
      "embed_video_url": null,
      "thumbnail_url": "https://beehaw.org/pictrs/image/aaaefb47-ab90-418f-814b-c63086b746f8.jpeg",
      "ap_id": "https://feddit.de/post/908703",
      "local": false,
      "language_id": 0,
      "featured_community": false,
      "featured_local": false
    },
    "creator": {
      "id": 34228,
      "name": "November",
      "display_name": null,
      "avatar": "https://feddit.de/pictrs/image/ad41ccb1-9fb7-4615-bea4-9dafa4a3cc20.jpeg",
      "banned": false,
      "published": "2023-06-12T05:45:00.284014",
      "updated": null,
      "actor_id": "https://feddit.de/u/November",
      "bio": null,
      "local": false,
      "banner": null,
      "deleted": false,
      "inbox_url": "https://feddit.de/u/November/inbox",
      "shared_inbox_url": "https://feddit.de/inbox",
      "matrix_user_id": null,
      "admin": false,
      "bot_account": false,
      "ban_expires": null,
      "instance_id": 6
    },
    "community": {
      "id": 350,
      "name": "animals",
      "title": "Animals and Pets",
      "description": "Pretty self explanatory. Post animals, post pets, post stuff about animals and pets!\n\n---\n\nThis community's icon was made by Aaron Schneider, under the [CC-BY-NC-SA 4.0 license](https://creativecommons.org/licenses/by-nc-sa/4.0/).",
      "removed": false,
      "published": "2023-06-06T23:15:43.737680",
      "updated": "2023-06-16T19:33:12.626731",
      "deleted": false,
      "nsfw": false,
      "actor_id": "https://beehaw.org/c/animals",
      "local": false,
      "icon": "https://beehaw.org/pictrs/image/fc62ef62-657e-4ab8-ae33-b32cc20e4dc0.png",
      "banner": null,
      "hidden": false,
      "posting_restricted_to_mods": false,
      "instance_id": 5
    },
    "creator_banned_from_community": false,
    "counts": {
      "id": 30595,
      "post_id": 85854,
      "comments": 13,
      "score": 64,
      "upvotes": 64,
      "downvotes": 0,
      "published": "2023-06-18T10:36:43.876949",
      "newest_comment_time_necro": "2023-06-18T23:01:59.286120",
      "newest_comment_time": "2023-06-18T23:01:59.286120",
      "featured_community": false,
      "featured_local": false,
      "hot_rank": 34,
      "hot_rank_active": 80
    },
    "subscribed": "NotSubscribed",
    "saved": false,
    "read": false,
    "creator_blocked": false,
    "my_vote": null,
    "unread_comments": 13
  }
}