I ran into the same thing - they seem to change (potentially to other outputs from the same model?) when you click on the Question mark and go back.

Using an LLM for finance is insane, not only for the usual reasons AI is disliked here on Lemmy, but because the proper way to do this (putting aside whether you should) would be to tune a machine learning model, probably a supervised regression model, to do these predictions.

No worries, all the best with that.

I wish I could be more help with the radio app but I get the impression that it’s intended to be built with the ROM and while I’ve compiled ROMs once before I have no idea how to include a different app with the build.

I was going to recommend RevampedFMRadio but I see your device isn’t either Qualcomm or MediaTek.

There’s some discussions on XDA and Reddit I found where someone wanted it on an S10/S10e and the responses were that the Exynos chip does not have any FM radio functionality at all.

I looked up your Exynos 850 chipset and Samsung’s datasheet says it does have an FM radio, as you yourself surmised by it being in the stock ROM.

There is this app (seemingly without anything prebuilt) for a different Exynos chip, but given it hasn’t been updated in 3 years and the chip difference, I wouldn’t have high hopes.

Otherwise you might have more luck asking the LineageOS maintainer why FM radio functionality is missing and if they could add it.