I am a British Citizen with the French EU-Article 50 (Brexit) residency permit, allowing me to live and work in France. I am a permanent employee of a French company (CDI), and I work for them from my home in France.
I would like to spend three weeks in the UK next year, one week working from a coworking space or a friend's house, the other two on holiday, all on the same trip. I'd enter the UK once at the beginning of the three weeks. I'd be travelling on a British passport.
Does British law allow this?