I work with some toxic colleagues. Most people are friendly and respectful. 2 in particular are very two faced, gossip about people, shirk and try to delegate their work to others so they can 'work from home' which they are going shopping or to the cinema instead. One of them admitted not working and going to the shops so it's not me making it up.
When they are in the office for half an hour to an hour they will go and chat away from their desk about their personal lives and non related work things but expect everyone to do their work while they slack off. These 2 act like best friends but even turn on each other and gossip about each other behind their backs. They manipulate the team manager on their side and enjoy causing drama.
I accepted them years ago on Facebook but won't accept colleagues now so I have put them on restricted access as I don't want people knowing my business. I have one on WhatsApp and I feel like deleting their number as we don't message and she even said herself people at work are colleagues and not friends. What is the best way to distance yourself from people like this? They are not good for my mental health.