From new year they will be introducing their own tighter restrictions that include twice weekly LFT testing for everyone, PCR required for ANY cold symptoms at all and not to come in until negative test supplied, if anyone in school tests positive then whole class including teacher must get a PCR test and cannot return to school without forwarding the negative test to school, and if someone at hone has covid child must not come in for 10 days.
That's quite an onerous level of restrictions. Our (private so possibly feels under pressure from our scary parents not to go to remote teaching) secondary went back to mask wearing in lessons at the end of last term.
But the school rules are that you send in kids if there's a positive test at home. In fairness, this proved a good option when my eldest tested positive but his younger brother didn't so didn't miss a week of school (he did daily LFTs before he went in).
They will also not provide links to live lessons if kids are off for anything other than having a positive covid test. Their rationale being that you can be in good health despite having covid (my son was) but, if you're too ill to be in school, you're not well enough to be doing remote lessons. It has proved a little controversial with some parents but, particularly in exam years, they feel the kids need to be in school as far as possible as they perceived they're behind after two years of disruption.