Go 1.17 will release with a lot of known bugs. Continuing to ship it a year later with known bugs is not different.
But more deeply, LTS ships buggy versions of the software. That's the point - only the truly dangerous bugs (e.g. compilation-triggered RCE or something) get fixed, everything else stays compatible even if it's otherwise undesirable or suboptimal. Code depends on those bugs.
Thank god there's no known bugs in released software!