Musixmatch ties the publishing reach of a contribution to two things: the experience and certifications of the contributor, and where the contribution was saved.
If you're a Community member
Your contributions keep publishing on the Musixmatch website according to your role, as usual. Only tasks sent through the mission system also publish to partner sites such as Spotify and Instagram.
To see your contributions reflected on those sites, work toward Curator status, which gives you access to the mission system. Musixmatch curates the mission lists internally, and contributions completed through them publish to Spotify and other partner sites after a short quality review.
If you're an Artist, or you collaborate with one professionally
Musixmatch Pro guarantees your contributions distribute to all partner sites. Every Pro plan includes this feature. See the Pro help center for more detail.
Note: gaining Curator status requires passing the Curator Test, which Musixmatch periodically closes to new applicants per language. If the test is closed for your language, this path is paused until it reopens. The source material does not describe a way to check reopening status for a specific language in advance.