What do you mean by unaccepted and impossible to fight? Why do you want to fight them? No one ever used the big SQRL version as far as I know.
Discussion
SQRL lacks the interest alliance like FIDO to drive its adoption among hardware and software vendors, and it also lacks the resources to promote it to consumers. Currently, all software or hardware vendors actively promoting Passkey are part of the FIDO alliance, such as Microsoft Windows, Google Android, and Apple iOS/macOS. So, GNU/Linux is not included.
The main conflict lies in FIDO's requirement that the passkey key cannot be extracted a second time, which essentially promotes vendor lock-in. In the open-source ecosystem, achieving non-vendor-locked passkey key synchronization without secondary key extraction is virtually impossible.