Hello,
Sorry, i was a little stressed, i had to revert back to older version in a hurry as my site is a high traffic site. I will try an upgrade later today in another site with less traffic.
But for me it loked like some main .JS was missing as all images was very big, product grids had no borders and all widgets was wide open. Also my custom filter which i am using in shop page was open so the categories was just listed below each other in a long row.
Also the brand image carousel just above the footer had images like 500x500PX
So in total mostly everything was messed up and empty browser cache or open site is my 2 other browsers did not help.
Brgds