Saw the following post on thread and it make sense:
“Contribute to my pre-tax 401k up to the match: $11,750 then stop (Meta will match 100%)
Max out my after-tax. Ideally you could contribute $46,750 ($70k - $11,750 - $11,750) but Meta caps this at $34,750.
New Company:
I still have $11,750 that I can contribute to pre-tax to get as much of the offered match as I can.
Then you can use the rest of the space to max out the after-tax as much as they let you, up to $58,250 ($70,000 - $11,750 - Match).”