I suggest you let the adults talk sports and you can continue with sponge bob square pants...
ND can play in the orange bowl, but not as a REPLACEMENT for an ACC team
The orange gets the second ACC team (NOT ND!!!) if their champ go to the playoff
Aside from its ACC money, (5.8 Million) Notre Dame also has a television
deal with NBC that runs through 2025 and pays $15 million annually — a deal that has been in place since 1991. Notre Dame is also not obligated to share any payouts from bowl appearances that other ACC schools are obligated to share.
https://slapthesign.com/2018/05/26/notre-dame-collects-5-8-million-acc-deal/
ACC Bowl Ties, Tie-Ins, Affiliations 2020-2021
– The ACC champion goes to the Capital One Orange Bowl unless it’s in the College Football Playoff, in which case the next-highest ranked ACC team will get in against the SEC this year. After this season, the highest-ranked available Big Ten team, SEC team, or Notre Dame will be eligible to face the ACC in years when the Orange isn’t in the CFP.
Notre Dame is eligible for any ACC bowl tie-in as long as it’s within one game of the team eligible for the slot. However, it can’t play in the Orange Bowl in the ACC’s place.
As a partial member, Notre Dame only receives a bowl share in years when it plays in an ACC-contracted bowl game, not including the Orange Bowl.
https://collegefootballnews.com/2020/01/acc-bowl-ties-affiliations-2020-2021