> proprietary file formats, vendor lock-in, monopolistic and restrictive trade practices etc. are reasons why users dread switching OSs.
That certainly used to be true, but I think most of those issues have fallen away, and it's mostly just about applications and unpredictable hardware support. Despite the efforts of proprietary OS vendors to invent new whiz-bang features, most people use the OS as a launcher for their Web browser and the collection of applications that they actually care about (office suite, games, professional tools like Photoshop). Proton is a really big deal because it unblocks migration for the people whose key applications are games from Steam.
That certainly used to be true, but I think most of those issues have fallen away, and it's mostly just about applications and unpredictable hardware support. Despite the efforts of proprietary OS vendors to invent new whiz-bang features, most people use the OS as a launcher for their Web browser and the collection of applications that they actually care about (office suite, games, professional tools like Photoshop). Proton is a really big deal because it unblocks migration for the people whose key applications are games from Steam.