What does it even mean linear structure? O_o

I mean, so far we have at least 3 different ways to approach the main quest (removing tadpole >>
Githyanki / Druids / Goblins
) ... with another 3 options that will become dead end, when done (
Volo / Hag / Gut
) ...
Every side quest as far as i know, can be done it at least two different ways ...
Most encounters can be either dealt with force, or avoided by stealth, or (if you are lucky) you can even talk your way out. O_o

What im trying to say is that there isnt even a single things i would call linear, so i dont even know where this worry was sourced. O_o

I liked original spellcasting system more ... frown

Anyway ... i cast Eldritch Blast!