Ensuring the effectiveness of our failover configuration for dual ISPs was crucial, and upon careful observation during the second attempt, I can confidently confirm that it indeed works flawlessly. I highly recommend this setup, especially for those managing dual ISPs.
I firmly believe that this configuration is optimal for your needs. Should you decide to implement it on your router, I'm optimistic that you'll achieve the same positive results as I did.
Thank you for considering this recommendation.