I personally use RedReader (signed out) and "share to" Linkora to save useful threads.
https://f-droid.org/packages/org.quantumbadger.redreader/
https://f-droid.org/packages/com.sakethh.linkora/
That works for now. If redreader stops working... 🤷 bye Felicia. I don't visit Reddit much anyway.
I've replaced "sitting at PC, nothing to read" with neal.fun, Atlas Obscura, Smithsonian Smart News and Lemmy 🤣
PS: IIRC, you can download a good chunk of reddit as an archive to search against.
https://github.com/ArthurHeitmann/arctic_shift
https://github.com/19-84/redd-archiver
I think the full pushshift reddit archive (to 2024?) was 4TB, but you can just grab smaller useful subsections. So it's less of a workaround and more a "tube is out of the toothpaste, suck shit Spez".
Actually, redd-archive (which is up to end of 2025) has an MCP, so you could point your local LLM at it and get it to find the info you need, all off line.
Last I checked, it even let you grab snapshots of particular subreddits of your choice, so you're not grabbing multiple terabytes. 2026 snapshots aren't out yet IIRC
Iirc shreddit lets you download all your posts before deleting them