Is the pricing for GitHub larger runners reflected in billable time stats?

[HermannGruber]

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(I asked the same question on stackoverflow a while ago and did not receive any answers.)

GitHub now features larger runners for GitHub actions, which provide more performance at higher costs per minute. For example, if a job runs on ubuntu-latest-4-cores instead of the standard runner ubuntu-latest, it has 4 vCPUs instead of 2 vCPUs, but also the price per minute doubles. My question is now regarding the billable time, which is displayed when I open a run of a github action: let us assume that my github action contains two jobs; one job in the action runs on ubuntu-latest for one minute, and another job runs on ubuntu-latest-4-cores for one minute, will the billable time be displayed as 3 minutes, taking the doubled price into account? Or will it be simply shown as 2 minutes (in which case the billable time is not proportional to the actual cost)?