For me the feeds solve a lot of problems with straight hashtags, like getting stuff that's the wrong language, or bot spam. But I guess if you are just going for visual stuff that stuff may be easier to tolerate.
If you don't like the feeds that are out there already, you can build your own feed. https://www.southernfriedscience.com/a-quick-and-dirty-guide-to-making-custom-feeds-on-bluesky/
On Bluesky you follow starter packs which are collections of users which go to your main feed. https://blueskydirectory.com/starter-packs/all
Or you follow feeds which are set up by users to track certain topics. These can be very highly customized follows of people, hashtags, keywords, crowd tagged topics, including blocks of certain stuff. These are like subreddits or Lemmy communities. https://blueskydirectory.com/feeds/all
For me it's the difference between something that's usable for its purpose and something that's not. As much as I wanted to use Mastodon and tried, it just never got off the ground. If Mastodon introduced starter packs, subscribable block lists, topic tagging and blocks, etc. I would use it in the same way I do Bluesky. But it hasn't done that so I don't.
Not setting up an account, that's roughly the same. Adding contacts by topic, blocking topics and people with bad agendas en masse, etc. I started my Mastodon account almost a year before Bluesky. In Bluesky I had something useful in a week. In Mastodon I still don't (and it's not for lack of effort).
But Bluesky does have a lot better features when it comes to actually effectively using the platform. Getting set up on Bluesky is orders of magnitude easier than Mastodon, and I do think that's a big part of why it's become the preferred destination recently. Mastodon had a real shot early on but didn't make it easy enough for people.
I am an AirPlay user so haven't tried the google cast. But it separately lists echo speakers and display group, works with google, and google cast as capabilities, so I'm guessing all work. There's probably a YouTube video showing it somewhere.
WiiM Pro is a good replacement and support far more protocols in addition to chromecast audio, and much better DACs, but is at a different price point (though a far better value than anything else on the market).
I hope this is true because we can't afford to lose the last good guy printer manufacturer.
Thought it was going to be Russia?
The biggest obstacle to Hungarian sovereignty is Victor Orban.
No one escapes unscathed.
You can build a feed just from straight hashtags if you want, but I think combining it with crowdsourced tags, block lists, and keywords will get you better results.