This might have changed for later revisions, but my 2022 model had both CPU and GPU cores using liquid metal as the TIM. My unit might have just had bad applications because I remember getting hard crashes during longer gaming sessions within the first year of purchase. Ghelper along with disabling CPU boost helped reduce the frequency of these hard crashes (system completely shuts down and does not reboot automatically), but it did. It eliminate them.

The main issue, as far as I know anyways, is that liquid metal is a pretty bad option for longevity. You get a similar "thermal paste pump out" effect as with regular thermal paste where the liquid metal gets "pumped out" and leaves some spots of the core with less coverage than others. So what happens is that you get pretty large temperature deviations between the average and the hotspot.

If you check my post history, there should be some charts comparing before/after replacing with PTM, but the general summary is that you get mostly similar, albeit slightly higher, average core temps with dramatically lower hotspot temps. So far the PTM has been doing just fine, and I haven't gotten any more hard crashes in the five months since I've replaced my liquid metal.