RiF still lives on my phone, hoping one day I can use it again.
You can patch RIF to use your own API key, and with normal use you won't exceed Reddit's free tier API call limit. I used this guide to patch Relay for Reddit, but it has all the required info for RIF as well:
Yeah, Podcast Addict is proprietary and ad driven, unless you pay. I grabbed a lifetime ad-free upgrade years ago when it was like two bucks.
On some level I agree with you, I generally love open source, and if AntennaPod had the feature I was looking for I would have switched, but I also don't mind paying for software if it's good and reasonably priced.
I've been using Podcast Addict for years, and when I tried to switch to AntennaPod, I couldn't figure out how to configure it in such a way that I can listen to the back catalogue of a podcast in chronological order and have the app automatically download a rolling buffer of a small number of episodes. When I looked around online for solutions, I found a forum thread of someone who had the same issue, and the maintainers of the project responded with confusion and dismissal as to why anyone would need that functionality lol. So I'm still on Podcast Addict.
Even the PS5, which is for the most part is just an x86 PC, still has a unique architecture that allows for loading and decompressing textures from disk into VRAM without putting any load on either the CPU or GPU.
It's not like they aren't trying to do new stuff, it's just hard to find new avenues to innovate when so much has already been figured out.
TeamSpeak recently added screen share to their TS6 beta, however it currently only works on official servers provided by TeamSpeak; they have not yet released TS6 server software, only the client. To my understanding, they are thankfully still planning on releasing it though.
Just have the dongle permanently attached to your earbuds like it's a part of the cable.