Razer Blade 15 Advice

I'm looking into purchasing a new laptop for heavy processing work but before I do that, I would definitely like to hear some advice from previous blade owners.

I work in VFX where I do quite heavy simulations on local machine with batch rendering on cloud farms. I also do editing and color grading on the side as well. I do have a beefy desktop back in my country but with me moving from country to country per year, it's not that cheap to ship my desktop with me.

Currently I'm thinking of this: configuration:
Intel i9-12900H
QHD 240Hz OLED
GeForce RTX 3070 Ti

I know the 16gb is slotted but would be best if I can upgrade it to 64gb. I know the previous older gens you can upgrade it to 64gb, not sure if the current gens are limited to 32gb?

I'm not a heavy gamer, occasionally overwatch or some light gaming. Helps and advice would be much appreciated.

Cheers.