Microsoft is selling the ESU in cumulative year-long batches, so they're only offering Year One for free for now. But depending on how many people are left on W

Microsoft is selling the ESU in cumulative year-long batches, so they're only offering Year One for free for now. But depending on how many people are left on Windows 10, it wouldn't surprise me if they extend it by Year Two just to stay clear of the Digital Markets Act. As for limits, I think it's only a limit of PCs per account, but I think you've got that limit already for licenses anyway. And of course it won't last forever, sooner or later we'll be on square one again. I've personally already migrated my devices to Linux, except for a partition to play games that require anti-cheats, and I'm explaining to my family what their options are.