Assume high comp & individual maxing 401k with 3-5% match.
If an employer offered to add $20k/yr contribution, then decrease your salary by $20k/yr, you would be losing out, right (since balance is taxable but you didn’t get a tax break)? Would the company benefit from a tax break?
Separately, I understand the best option is supporting MBD Roth IRA via:
1. After-tax (not Roth) contributions beyond the $23.5k limit
2. and, also in-service distributions to Roth IRA or in-plan conversion to Roth 401k