Yes other components will have helped but nowhere near as much as the change of GPU. For example, on my ancient desktop PC with only a 3rd gen. i5 CPU, only 8 GB RAM and only on-board graphics, a DeepPRIME export of a ~30MB .CR3 files took over 4 mins. Adding a (technically below spec.) GTX 1050ti GPU cut the export time to about 30 secs. That very clearly demonstrates how crucial the GPU is to PL’s DeepPRIME algorithms.
You’re overthinking it a bit 
Those specs will run PL7 easily; exports are mostly CPU/SSD, not GPU. OLED is totally fine for photo work—refresh rate doesn’t matter, and no blooming like miniLED. Burn-in isn’t really an issue anymore with normal use.
From your list, ProArt 16 or Aero 16 OLED are probably the best “photography-first” options. XPS has a great screen but can throttle on long exports. MiniLED only really makes sense if you edit in very bright rooms or care about HDR video later.
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This topic is at least two years old. I suspect the OP has got a new laptop by now
That’s just plain wrong. All of the DeepPRIME noise reduction algorithms use a GPU if a suitable one is available and the impact of using a decent GPU during export is dramatic. It cuts export times from minutes to seconds.
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Once this years laptops with the X7 358H/368H or X9 388H cpu/gpus start shipping in bulk (say March-June), you should be able to get them for under $2000 very well configured.
Those CPUs will give you a new-gen Arc Xe3 gpu with (12 cores) performance in the RTX 4000 class with all of the vram DxO could ask for. The next gen of Intel gpus on Nova Lake, the XE3+ and Xe4 class, will double that performance. Laptops with Nova Lake will be out in 2027.
@Sparky2006 This topic was started two years ago.