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The Linux Foundation spent 2% on linux kernel support in 2023
(programming.dev)
A community for everything relating to the linux operating system
Also check out !linux_memes@programming.dev
Original icon base courtesy of lewing@isc.tamu.edu and The GIMP
The foundation supports a bunch of other open source projects, after all there is a lot more to devices that run the Linux kernel then just the kernel.
Also, I found it a but funny that the foundation created the PDF using Adobe InDesign 19.4 (Windows), according to the metadata in file posted on their website. (original | archive of the PDF)
Looking at the member list it seems like the foundation is supported by companies that probably only care for Linux as a server platform.