Leafs actually have 10 UFA's currently on the NHL roster and 1 RFA (Samsonov) without contracts for next year. However if you weren't including Holl as one because its applied he is gone then its only 9.
However those 10 - 11 roster spots would need filling by re-signing or replacing.
Leafs currently have only
$9,143,550 in free cap space available.. With 11 positions and < $10 mil in free cap =
$831k per player on average to replace. (League minimum salary 2023-24 = $775,000)
Getting Murray's $4.67 mil off the books via trade or buyout almost a must, and with a buyout saving $4 mil next year that could be used to re-sign Samsonov at and one problem solved.
New GM has little money to play with to reshape the roster.
The contract extensions for AM and WN with applied raises from current need to be budgetted for in 2024 when the kick in.