Can I upgrade my laptop to 64 GB of memory?

You can upgrade to 64 gb. If you don't care about speed then most should work. I would recommend this kit specifically though to get the most speed out of it and being able to boot into XMP. https://www.newegg.com/g-skill-64gb-260-pin-ddr4-so-dimm/p/N82E16820232948 I'm sure you can find it somewhere else for cheaper. That was just a quick google search of the kit I have but 64 instead of 32.

I have https://mysupport.razer.com/app/answers/detail/a_id/3202 and had confirmation from Razor support stating yes as long as it is DDR4-2933MHz. In a few threads, people seem to have no problems with 32GB (2x16GB) sticks which are 1.2v e.g. https://www.amazon.com/Kingston-Technology-HyperX-Impact-HX429S17IB2/dp/B08K9BQ43F?ref_=ast_sto_dp&th=1 In the below threads, there seem to be genuine support problems with 64GB RAM in the 17" Pro models. In General /razer-17-pro-ram-upgrade-hyperx-impact-3200mhz-xmp-does-work-dont-buy-crucial.63951/#post-650519 In Systems /razer-17-pro-2020-ram-upgrade-options.64991/ /g-skill-ripjaws-series-64gb-will-this-work-on-my-razer-blade-pro-2020.65112/ In Support /razer-blade-pro-17-2020-ram-issue.59373/ I am waiting for more information before I purchase RAM.