Can not figure out the difference between rlig
I have tried to understand this by myself, but could not find the real difference.
Oh! I have noticed that on 'rlig' definition you will find the phrase 'required ligature', but both rlig & liga have the same purpuse:
Replaces a sequence of glyphs with a single glyph which is preferred for typographic purposes
And both have the same UI suggestion:
This feature should be active by default
Sorry for asking something that might be very simple for exports around here, but as a program designer that want to understand [at first] those features that should be active by default, i've found all this Microsoft documentation a bit confusing.