I've definitely noticed in the UK contract market that the vast majority of contracts are fully remote, simply because it's the only way they can attract contractors to inside IR35 contracts. There are of course still contracts they need an onsite presence, for example there's only so much testing of desktop and laptop builds that you can do on VMs before you have to get to the hardware and so few orgs use Intel AMT.
At my last contract I did notice the helpdesk staff getting monitored for things like their Teams status going to Away (which happens a lot if you aren't in the app) or taking lunches when not expected though, but there's always managers who will pick at things like that to try and justify their job.