Chat in the sidebar (drupal off-canvas support)

Webform → module is a big user of Drupal's off-canvas and it looks good:

• #2935697: Add support for new Off-Canvas dialog tray →
• #3066344: Improve off-canvas support →
• #3171078: Allow for elements/handlers to define the off canvas size they need →
• #3305950: Claro editing dialog displaying light grey form description text →

Sometimes users may want to use off-canvas together for other features at the same time (like webform, layout builder etc), so off-canvas will be just one great of the other AI placement options.
Another option will be to allow placing it in custom made chat window overlaying the website, so it could be used also independent from off-canvas.