Incognito windows are useful for short private browsing sessions, but they are not a profile operating model for multi-account teams.
An isolated browser profile keeps persistent state intentionally. It can have its own cookies, storage, proxy context, fingerprint settings, ownership, and team handoff rules.
Persistence matters
Many account workflows need stable state over time. Clearing everything on each session can create extra work and make operations harder to debug.
With browser profiles, teams can decide which state belongs to each account workflow and keep unrelated workflows separated.
Teams need ownership
Incognito windows do not tell a team who owns an account, which market it belongs to, or which proxy context should be used.
A governed profile workspace gives operators a shared structure for naming, assignment, and review.