I have dozens of Arduinos that I will never use.
With a similarly priced (sometimes cheaper) platform like the amazing rp2040 / rp2350 which is roughly 100 times more powerful, I have no idea what the niche is for them any more.
The way they dropped the ball with their IDE is amazing. It still looks and feels like something that was rejected during beta testing in 1993
Arduino is following roughly the same trajectory as BlackBerry, with the current phase being "rapidly fading into obscurity"