E3D Heatbreak has many kinds of heatbreak.
For standard All-metal heatbreak there are stainless steel & titanium TC4.
both can goes up to 300C without any issue.
For All-metal heatbreak, please do adjust your retraction distance and speed. if suffering from heat creep please do reduce the distance.
If you are mainly printing PLA only, do to get PTFE liner heatbreak for less heat creep or partial clog issue.
4.1mm heatbreak can fit PTFE tube so it can print PLA better since it’s lower temp.