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Definitely for the next few years, but who knows - RISC-V is catching up scarily fast from what I can tell

Where is RISC-V being used? Do they have some notable recent design wins?

For the most part, RISC-V is being crammed into SOCs for low-end functionality where you'd have to pay ARM a license fee. There's a massive technical alliance with thousands of members and many such SOCs being made.

Wins in SOCs are things like Google's Titan M2 in Pixel 6, or inside various Seagate storage ASICs-- or NVIDIA's stated intent to replace the Falcon controller CPU in all of their products with RISC-V.

Yes, it's just a few percent of the embedded processor market, and all the current microcontroller use is very low end right now.

Isn't NVIDIA's new firmware controller chip on their cards (the one that allows you to use the new open source linux drivers) RISC-V as well?

Yes-- that's the Falcon / now NV-RISCV. https://www.techpowerup.com/291088/nvidia-unlocks-gpu-system...

Of course, if NVIDIA ever does actually acquire ARM, that might change architectures again.

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