All of those companies are perfect examples of what I’m talking about.
Chevron: Exxon, ConocoPhillips, BP. From a customer perspective there are tons of competitors which make your life better ranging from QT, AMPM, to Buc-ees (a favorite which people literally LOVE to visit).
Verizon: Starlink, TMobile, ATT, Comcast, etc
Microsoft: Apple, Google, Cloudflare, Amazon (differentiates itself literally on quality of customer service)
The IRS or DMV? No competitor. Unhappy with their service? Go fuck yourself.