https://gs.statcounter.com/os-market-share/desktop/north-america/#monthly-200901-202607
Cloudflare stats also seem to support peaks of 15% usage but around 9-10% on average. In the United States alone, the market share for Linux is nearly 12% now for the whole month and Cloudflare stats suggest peaks of up to 25% (!) Linux desktop usage on certain days and times.
The trendline suggests this is just the start. When will companies realize they cannot ignore Linux anymore?
Used laptops on ebay are still decently cheap if price is the issue, lots of stuff in the $50-100 range
Used corpo PCs can be found inexpensively as well, if portability isn’t needed. Craigslist can be a good source depending on your area
4000 and 5000 series AMD laptops are around the $300 range for a decently specced model. I have a 5825u laptop and it’s fast and efficient.