Stock-Based Compensation and Warrant Units - Schedule of Restricted Stock Unit Activity (Details) - RSUs - $ / shares	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 24, 2022
Shares
Balance at beginning of period (in shares)	12,884,015	12,365,587
Granted (in shares)	3,102,298	7,625,784
Vested (in shares)	(6,863,457)	(4,187,313)
Forfeited (in shares)	(1,190,356)	(2,920,043)
Balance at end of period (in shares)	7,932,500	12,884,015	12,365,587
Weighted Average Grant Date Fair Value
Balance at beginning of period (in dollars per share)	$ 15.81	$ 15.81
Granted (in dollars per share)	44.44	15.72	$ 15.81
Vested (in dollars per share)	15.73	15.78
Forfeited (in dollars per share)	20.14	15.62
Balance at end of period (in dollars per share)	$ 26.43	$ 15.81	$ 15.81