Programmers might write more efficient code if the performance was unacceptable on their own laptops, but even in the not-flush-with-cash companies I've worked all my career, it's been easy for me to always have a dev laptop with twice as much RAM as most consumers have. I'm presently working on a laptop with 64GB, and we don't even use any local AI models. If a PE company is willing to spec dev laptops like this, even in the memory shortage, then I assume the memory pressure will never hit developers.

So, this carefree attitude directly shapes all code that runs client-side (JS + native apps) since the only impact on the company is whatever happens on the dev's laptop. The rest of the impact is "free" since it's paid (in either money or in misery) by customers.

For server side, I also highly doubt it, as being more memory efficient on the server side has always had a benefit to the company who pays the bill. The only things that may change may be the relative cost, but if management comes and says "AWS bill going up, help?" devs will say "OK, we can find ways to save RAM, but the team won't be doing any new features or fixing any customer-facing bugs during that time" and management will say "Okie dokie, we'll just pay the bigger bill then."