Yes all super contributions where a tax deduction has been claimed by the taxpayer making the contribution (employer or employee) are taxed to the fund at 15%
that is the bulk of money going into super
so yes the compounding effect of removing or reducing this tax would be massive
and would give far more benefit to most Australians in having larger super balances at retirement than the unsustainable removal of tax on pensions which due to concessions in place has not produced any real benefit except for higher wealth individuals
