Yes, it is patchy.
Locally:
Iceland seem to be well stocked (although they are complaining about shortages nationally)
Aldi - I haven't really got a feel for the store yet as we've only started shopping there recently, but I breezed through there this afternoon and got everything I wanted - although some stocks were a bit haphazard.
Waitrose - they do seem to be suffering a bit. Certain lines have been missing off the shelves for weeks, like their own brand pitta bread and cosmetics, and today, paper goods - kitchen towels, tissues in particular - were very depleted with an apology notice in the aisle that there were stocking issues.
I'd agree that there's no shortage of booze in both Aldi and Waitrose, Vic, but we're both more or less teetotal!
We have started gently stocking up on a few items, though .....
like toilet rolls .....