As a ThinkPad lover, I have used T460p as my portable laptop since my x60 died. And I have a chance to use P17 gen 2 for my research.
Until recently, I believed computation power should be the priority for a graduate student in the engineering field.
However, I realized that portability is critical for a graduate student as co-working and traveling make me feel my laptop's weight and short battery life.
Moreover, computations for research after its initial phase are probably not handled by the personal computer scale.
Thus, I am curious about what laptops meet those criteria balancing appropriate computation power and portability these days.
I think ThinkPad P1 can be an option. Or, combining Thinkpad P16 and Yoga can be a luxurious way for general satisfaction. Both are pretty pricy choices, though.