Can public rental housing be decorated by itself?

You can't. Public rental housing is a kind of affordable housing supported by government investment or policy. Its purpose is to provide it to people whose income level is below a certain standard and whose housing is difficult. The rent and property management fees of public rental housing are relatively low, but the decoration and facilities of the house are designed and built by the government to meet the basic living needs. The lessee shall not decorate the leased public rental housing without authorization.