I told Spouse about the d-i-y tip to use a hot air gun to remove the old cork tile adhesive in the bathroom. He tried that for a few inches and it was taking ages as well as power.
He grumbles about everything he does but this time I sympathised and suggested that he simply took up the whole lot in one go by lifting the underlying ply.
He did, got a couple of 8x4 sheets, removed the old ply+tiles intact, dealt with pins, cleaned floorboards, laid new ply and fitted new cork tiles in a few hours. Bingo!
Minimal financial cost and, more important, minimal time and irritation cost. It was well worthwhile.
What's more, I could have a bath :-)
Mary