This flag was waved at today's Trafalgar Square rally against Covid-19 measures which featured David Icke, Piers Corbyn and Kate Shemirani
Another Q sign can be seen here, as protesters marched towards Downing Street. This wasn't meant to be a QAnon rally. But some believers still turned up
And there are more QAnon banners and signs in this thread by @JoeMulhall_ https://twitter.com/JoeMulhall_/status/1299683858896637953