How different can the content of a canonical page be?

Question

Search Engine Optimization

Is it possible to make a non-canonical page (put rel=canonical) whose content is quite different from the content of the main page? And will the weight of the main page be transferred if the link is to a non-canonical page? Thank you.

Answer 1

And will the weight be transferred to the main page

Yes
no problem

Answer 2

the search bot will let everything go to the canonical one, then it’s not very clear why it’s not canonical