With a 'clean' windows install, fast processor, 32GB of RAM, fast start on (to cut time in the BIOS) and a modern solid state drive you can be at the Windows 11 desktop in 10 - 15 seconds .
Full BIOS checks every start-up = add 20 secs or 30 with Blu ray drives waking up etc
Small amount of RAM add 10 secs
Slow Processor add 10 secs
Loads of bloatware / un-necessary start up programmes (Yes you DELL) and slow anti-virus etc add another 20 - 30 secs or more