The feature is quite hidden in Krita, especially for users who are looking for Liquify as a filter. It's a submode of the Transform Tool; press Ctrl+T, right-click on the transformation, and select 'Liquify'. This video explains all the options you have to speed up the deformation and get the best results from it.
Soundtrack: Postcards, by Snoozy Beats CC-By, freemusicarchive.org Cherry blossom, by Snoozy Beats CC-By, freemusicarchive.org Lost in the rooftops, by Snoozy Beats CC-By, freemusicarchive.org
License: Creative Commons Attribution 4.0 International
Video and artworks by David Revoy
www.davidrevoy.com