I noticed the image in the op about free as I have read, it says Free (no deposit required, ever) but when I play I need to deposit first so I think the image have some mistakes and better update it. Any clarification with this one?. People should know what it is for and should be change and put the correct one.
There's definitely no need to deposit. The game would have put you at a 1/2 table to start where you can play immediately (all new accounts are given 100 chips to start). If you ever run out, you can click the cake icon at the top to top back up to 100. Of course if you want to play at higher stakes without depositing, you'll have to earn chips to be able to afford to play at tables and tournaments with larger buy ins.