I do all my retouching and post work in both Lightroom and Photoshop. I use C1, mainly, for tethered capture.
Sounds like the laptop is doing a good job for you. The issue you had with the Dell was my problem as well. It was rectified by a new (actually 2 new) MBs. They also replaced the display. The last item was a daughter card for the USB-C ports. Since the parts were on backorder, they ended up finally replacing the laptop. since then, zero issues (knock on wood). The only issue I've had, and it may really be Windows in a way or Intel, is forcing the laptop to use the AMD Radeon graphics, not the anemic Intel embedded graphics card. I couldn't figure out why some things in Photoshop or something else were taking so long to complete. It was the system defaulting to the embedded Intel card.