Unless you’re working with embedded chips with very small storage space, I’d recommend 4098-bit RSA

Not at all, if you understand why they created it and how they use it

OP is a conspiracy nut who doesn’t understand cryptography, know how to read C code, or know how to differentiate experts in these things from misinformation about these things.

I once made a cloud filesystem that used tweets encoded with base64 as a back end storage