I've used a Linux desktop for the last 14 years. Of that, Ubuntu since 2012 (and most recently Xubuntu).
What would I suggest you do?
- Add the "restricted extras" program so you have all available media codecs.
- Install gnome-tweak-tool so you can have more control your desktop.
- Install synaptic for managing updates and installs.
I read the website
https://www.omgubuntu.co.uk which has really good news and information about Ubuntu. Hope this helps!