Was up north for a week's holiday.
Some places had their own login system, ie the official app didn't read their QR Code. 
Some places asked for first name and tel number, written on a sheet of paper. 
One place did neither. We'd nearly finished our meal before we realised, so we didn't mention it. 
Hotel we were in had sanitiser everywhere and a one-way system. We ignored the one-way system on the basis that front door to stairs was about 2 steps, and we passed nobody. The one way system required us to walk through the busy bar. Go figure!
Most other residents didn't wear masks, at all.
One pub landlord told us he'd had a visit from the Covid police. 2 people got fined for not having signed in via T&T, and he got a bollocking (but no fine).
It's a lottery, I tell you.