How do I share files larger than 20GB on iCloud?

I have been trying to share large folders (more than 20GB) which are stored in my iCloud drive and it seems impossible.

Through iMessage I get the spin ball for hours and with email seems also impossible.

My internet speed is ok (just less than 1 GB).

Is there anyway I can do it ? I've done it in the past but the last couple of years get more difficult.

Any help would be appreciated

[Re-Titled by Moderator]