Wow, what a clickbait title! Intel has fabs, which takes a lot of R&D. If you're comparing to AMD or Nvidia, then you would have to add their R&D spending to that of TSMC's, in order to get an equivalent figure.
The article said:
Yet Intel spends on CPUs, GPUs, FPGAs, networking gear, quantum computing, and many other products.
Okay, so you had just listed AMD's Pensando business, which makes networking gear. We all know AMD makes CPUs and GPUs. And guess what? They
also make FPGAs, via Xilinx (thanks,
@thestryker)! Pretty much the only area you listed that they're lacking is quantum computing. Gelsinger killed off a lot of other businesses Intel was in, such as SSDs and NUCs. So, that probably doesn't leave a whole lot of "other products"!
The article said:
they all pale behind Apple's R&D expenditure.
Apple sells entire systems, so they have to do more hardware and software work, for that. They also develop their own operating systems, applications software, iCloud, the iTunes & app stores and have their own streaming service! Not to mention the financial services stuff they're doing and their automotive products group. All of that client-side and cloud-based software takes a lot of R&D spending to develop, maintain, and support.
Comparing any of them to Apple is probably an even more nonsensical comparison than comparing the others to Intel!