The ability to change skin/container has not worked for me for 7 years. Always had to do raw database edit. Not being good at sql, I just edited each cell in db for page skin and container. (copy/paste). I missed the Home page, it still had a version 7 skin and that didn't work.
Next step, upgrade real site, rather than clone
regarding changing control bar to persona bar - why does dnn 'fix' things that ain't broke, rather than fix bugs?
I see on translation page, half the items are blank or not yet available … https://www.dnnsoftware.com/docs/administrators/control-bar-to-persona-bar.html
For new sites, I always ask myself, do I need DNN or can I use html, bootstrap and a few gulp files or can I use Google AMP? But who knows, maybe I'll grow to love 9.2.2