You can disable and even delete an eSIM-profile. Then it’s just a dead chip. If your provider is halfway decent, you can recover a deleted eSIM-profile as well.
When I traveled last year, having eSIM-capability in my phone was extremely convenient. I picked two providers, one as the primary and one as a backup in case there were problems with the first one. No juggling with the SIM-tray and different nano SIMs.