There is no low tax on salaries, that is a myth … and there is a lot of additional mandatory fees in addition to direct salary tax. Switzerland is only a tax haven for a very small target group – and someone has pay for these tax privileges, i.e., salary earners in the private sector.
depending on canton/commune of residence, and income, it can be relatively small. I would call it medium taxation though, at least for common folks. definitely not a tax haven though.
VAT is small (8% or 2.5% on essentials), but prices/fees are very high to begin with.