Theoretical blackjack edge calculation

[SerialWinner]

Let’s take a standard 6-deck blackjack game where the house edge for a basic strategy player is 0.5%. Now, let’s tweak the probabilities a bit:

1. Whenever the dealer’s upcard is a 9, 10, or Ace, the probability that their third card is a 9 or 10 is 7/13 instead of 5/13.
2. Whenever the dealer’s upcard is between 2 and 8, the probability that their hole card (hidden card) is a 9 or 10 is also 7/13 instead of 5/13.

What kind of edge shift would this cause for the player? How much would this alteration increase the house advantage? Curious to hear some thoughts!