I feel that you may be right
@MartinWL. It was my failure to provide essential care for my wife - personal care most especially - and to do so day in day out for 24 hours that was a key factor in her move to a care home in the first place. It took a while, but the staff got on top of her needs and she is clearly so much better cared for now than when living with me. For me to suggest that I am now needed in the role of "essential care giver" would be nonsense . I have seen this suggested by others as a way to get around current visiting rules and restrictions. For my particular circumstances that would seem wrong-headed if not unethical.
I speak to staff on my visits and all of them are looking forward to the time when they no longer have to wear PPE for 12+ hours a day. In the meantime - leaving aside the question of efficacy - I am prepared to go along with the need to book visits, take a test and wear PPE when I visit. This has been the case for so long now that my wife, if she notices at all, seems totally untroubled.