I head about Audiobookshelf and I already use Escapepod on mobile, LMS for music (self hosted), so wondered few times about installing it too.

So can Audiobookshelf be used for clips and annotation?

I find that more and more often I listen to a podcast, it gives me an idea and I want to :

• pause
• record my idea, by speaking it aloud for e.g. 30s
• unpause to keep on listening
• review the idea later on, e.g. on my desktop, while maintaining provenance, e.g. this idea "monetization of own content creation for creators on my on-going VR project" (ideally as text at this stage, so using STT) was sparking by listening to podcast "Voices of VR episode 1226 on VR Chat and monetization" around 25min in.

Edit : just checked on their demo server and there is a bookmark option. It's just text for me, it doesn't clip part of the audio, but it does associate some typed text to a moment in time. It might be enough for me.

Is it possible to filter the episodes to download like in antennapod?

Probably massive overkill for OP particular, but if you wanna listen across several devices, the best option.