I have Stab Lok breaker panels in both home and garage. Mine were both installed and filled before Federal sent all manufacturing to 3rd world countries, which resulted in large runs of substandard breakers. Instead of destroying the bad runs, the company decided to sell the defective ones and fight the lawsuits. Bankruptcy and destroyed reputation followed. Why we were allowed to continue to sell Stab lok is that once a pattern emerged of house fires, Federal had to recall all breakers produced in the period and were disallowed from selling their breakers in Canada (they were delisted).
So all breakers you buy for these panels in Canada have been newly certified, and are considered safe. FWIW. I used to love Stab Lok over Siemens because the breakers were far more reliable (oh, the irony!)
Would I use stab lok now in a new installation? No way. Would I replace what has been working for over 30 years? Nope to that also.
Ther best breaker panel to use is the one that your certified electrician has the most experience with. Most faults and fires are caused by incorrect installation (save the stab-lok fiasco).
I have installed Stab-lok, Siermens, and Square D panels. Of the three, Square D is my fave, becaue there is more room to route wires inside. Otherwise, Siemens is fine too. They seem to have fixed their quality problems with their breakers. They used to fail open which was a pain because of replacement cost...