I'm not sure what you mean exactly but if I mail a letter at the local post office it gets sent 35 miles away to a sorting center first .
Sorting centers were closed, shifts and personnel cut. And scheduled upgrades were in equipment were canceled. Congressmen from both parties were in agreement that this had / has happened
Congress urges Postal Service to undo changes slowing mail
WASHINGTON (AP) — Lawmakers from both parties are calling on the U.S. Postal Service to immediately reverse operational changes that are causing delays in deliveries across the country just as big volume increases are expected for mail-in election voting.
apnews.com