projects that import the SDK /written by and (un)maintained by the matrix org/

e.g.: https://github.com/matrix-org/matrix-python-sdk (dependents doesn't work on this python project I guess)

or matrix-org/olm for JS

or matrix-org/matrix-js-sdk

or matrix-nio/matrix-nio (based on an old standard written by matrix, that matrix stayed compatible with rather than deprecating)

the inability to address the third issue (a security issue, no less) in 7 years is an impressive world record in incompetent messenger design