Thanks for the advice. But I didn't want to create another eeprom manager or like that.... In the end the main thing is functionality. If it's really convenient and easy - it doesn't matter what it's called.
Why do you think that more economical and careful memory usage is not an advantage? You can save more and overwrite it very often.
I realize that people are used to NVS, LIttleFs and preferences. But this is a more native approach. It is not only applicable for espressif platforms. I think it would be nice to have this kind of storage on blue pill? And it's already working) So over the long haul, if people try this library - it will be very popular and in demand.
We'll keep LittleFs for files, and NVS for esp32.