I would also ask yourself: what do internet cyclists know that your physio didn't about recovering from your specific injury?
It used to be the belief that for ligament and tendon tears that a number of weeks rest was best practice. But the evidence that accumulated showed that this caused weak repairs as the fibres didn’t mesh back together in alignment with the forces transmitted through them. Now it is best practice to get the injured party moving as soon as possible and progressively increase the demands.
What a physio knows often depends on when they learnt, how much they keep up to date with the latest thinking, and what they observe. The problem they have with observation is that they don’t have a baseline. Yes it improved (maybe) from when they saw the injured party, but they have no idea whether recovery is 80% or 100% of what that indiv could do before injury.
What do Internet cyclists know in comparison?
Well if they’ve had injuries they know what their baseline was, they know what they were prescribed, they know if they followed it, they know how close to baseline they returned, and how long that took. They know what they did once signed off by the physio. They know if they had ongoing problems or a repeat injury etc.
If an Internet cyclist has never ever suffered an injury due to over use etc in decades of reasonably high volumes of cycling. Then there’s probably something they are doing right, to avoid injury, even if a sample of 1 over decades. The OP may find some wisdom in that, that complements the physio recovery plan. Such that they don’ make the same mistakes and get another injury in the future.
The physios knowledge is cross sectional, and specialised. The Internet cyclists is longitudinal and very much not cross sectional, but still useful. Get enough Internet cyclist though and you may get both cross sectional and longitudinal.