It was only just reinstated, so it's probably too early to see the effects.
I also expect that despite the restoration of Section 174, companies realized that they not only overhired during ZIRP, but also that they don't actually need that headcount, given the outcome of Musk's Twitter layoffs. There were so many prognostications that Twitter would imminently implode after downsizing from ~8k to ~1.5k employees, and when these claims never came to pass, it was a wake-up call to the rest of the industry [0].
[0] https://www.livemint.com/companies/news/elon-musk-fired-80-p...