Thanks for the response, unfortunately I already did report this as a bug and reproduced it on M2 and M3, & M4 MacBooks all with the same bug appearing every time. The bug report system said it was not a bug and then closed my ticket.

Absolutely, here you go: OE1104763974513 The memory leak is reproducible on a blank Unreal Engine 5 project, memory increases unbounded at about 1mb/s~. I ran some diagnostics and its pointing to a metal memory leak.