Academic salary in Belgium
I work at a major Flemish institution (but am not local). Here there are different salary scales, depending on your rank.

You start as faculty as a "ZAP" (tenure track Assistant Professor). It is true that your salary increases every year. But that is normal I guess. To keep track of inflation I guess.

In order to have a more significant pay rise you need to advance through the ranks, get tenure, become associate, become full professor, etc.