Which in the short term is great news, and not many teams will have that amount of cap space right now, so we could even take a Marc Staal type trade for assets.
The problem is then the years after, where the cap is still flat, and you have Fox and Kakko needing extensions. Laf and Miller a season after that. An 8x7 deal for Fox cuts you down to 4 million. Zibanejad and Strome, if kept, will both get raises.
Long term, to keep all the kids, veterans will have to be jettisoned. Trouba and Kreider aren't moveable until 2024, well after these ELC's come up for extensions.
2 years from now who can we trade so that we have the money to extend Miller, Kakko, and Laf, even if they are all bridged? Georgiev can be gone, but that's a small amount. With a flat cap, it's gonna be difficult to trade even good value contracts like your Buch extension without having to take salary back.