As an early-retired university academic with a PGCE, and having taught physics, maths and computing at undergraduate level, I was rather surprised at the situation.
I have continued to apply for jobs and, with more than 40 applications in the state sector. I obtained a single interview but no job. So I turned to the independent sector, was short-listed for most posts I applied for, offered several, and have a post from September.
I conclude that either the state sector does not want physics teachers. Or perhaps it is ageist.
Name and address supplied, Birmingham.