I like BambuLab. They handled the issue seriously. Resolved it and now it is fixed.
What I meant with low end China is like QIDI-tech having exposed 230V (not fixing it), Tronxy choosing high and low voltage wires with the same color and no PE connection to the chassis, Ankermake having issues with the heatbed insulation (not fixing that either) and crushed wires. That's just three examples and don't expect that other companies are better. BambuLab is a rare exception.
Once you teardown "industrial"/professional machines the point of view changes: PE connections, strain relief, drag chain rated cables with appropriate bend radius, crimped ferrules instead of solder on wire ends, ... they are built to last and run 24/7 without catching fire...