Does the GNU License v3.0 allow the creation and development of a non-commercial fork?

Question

Licenses for software and other works

https://choosealicense.com/licenses/lgpl-3.0/

Answer 1

IANAL. TINLA.
> [GNU GPL]
> GNU License
> lgpl-3.0
The answer is the same for any of the GNU licenses and for any of their versions, but in general you will somehow decide there.
> https://choosealicense.com
If you draw knowledge from all sorts of garbage dumps instead of authentic sources - under GNU licenses this is (suddenly!) gnu.org ; then sooner or later you will not just not understand, but will misunderstand. Which is much worse.
> Does the GNU License v3.0 allow the creation and development of a non-commercial fork?
Yes. And commercial too. As is almost¹ any free software license.
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¹ There are a number of very old and very marginal licenses that allow you to exercise your right to distribute changes only in the form of distribution of differences ("patches"). They are still considered free.