I print these quite often - 50 or so a month give or take - do not use PLA - use PETG or ABS/ASA
honestly, if PLA+ cant handle the heat for most machines they should be shutting down for safety just before PLA+ starts to go soft. the new machines run hotter so a better material could be needed. which is why I've invested in so upgrades to be able to print using the Nylon infuse Carbon Fiber. ePA-CF/NylonX 155c/311f, PLA+ is 62c/144F.