What is important is whether you have any learning opportunities and whether you can improve your professional quality and work ability through design practice. With the improvement of working ability, your income will naturally increase. Even if your income is not satisfied, you will get the capital to find another job.
State-owned enterprises and private enterprises have their own advantages and disadvantages (at least you should have some experience in private enterprises). You can compare yourself: which one has more development opportunities, which one has formal management, which one is suitable for future development, which work experience is conducive to changing work units in the future, which one has more benefits, and so on. From the perspective of an experienced person, these are more important than salary. Young people should not stare at immediate interests, but must take a long-term view!