The sidepanel in Thunar v4.18.8 is complete rubbish!

No favourites and different heights of the objects. And if I expand airikr in the sidepanel, all folders in that folder will be listed. It's like the developers of Thunar wanted to make Thunar a clone of Windows Explorer or something. I hate it!

This happened few months ago after an update. On the laptop, I have version 4.18.7 and there's the sidepanel completely normal.

How do I fix this piece of garbage? By downgrading? How?

I've been using the default file manager for Linux Mint Cinnamon (as far as I remember it is), Nemo. It's okay, but I do miss Thunar for several reasons.