In Canada full time is 40h, not 35. In Quebec an employer isn’t required to give 15mins break. But if they do they must be paid. The 30mins lunch break is mandatory, but also unpaid. You’ve just gotten lucky with decent employers/union jobs. I’d imagine other provinces are similar.

…gouv.qc.ca/…/presence-work-breaks-and-weekly-res…

An employer is under no obligation to offer breaks but when a break is granted, it must be paid and be included in the calculation of the hours worked.

After 5 consecutive hours of work, a worker is entitled to a 30-minute meal break, without pay. If the worker is required to remain at their workstation during this time, their meal break must be paid.