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If your using Uefi boot loader you can select which os to boot from in your "bios" in addition to any other boot menus you have. Turn off secure boot and TPM to be on the safe side

It's nicer than partitioning, having all your second OS business on another drive, not interfering with the first.

At minimum that'll work if your laptop has a BIOS boot menu and each drive has its respective boot loader.

Ideally, the Linux boot loader (usually GRUB) should also list your Windows option, then you just leave the BIOS boot drive set to Linux. Not all Linux distributions will detect and list Windows automatically, and I wouldn't be surprised if Windows tries not to play nice since I last did this with Windows 7.

If your drive has the storage capacity, then you can partition it. You can install each Operating System into it's own partition, and then make it a dual boot setup. You just select which OS you wish to load from a menu when you power up.

- How To Dual Boot Linux and Windows 11 - https://www.tomshardware.com/how-to/dual-boot-linux-and-windows-11

- How to dual-boot Linux and Windows 10 - https://opensource.com/article/18/5/dual-boot-linux

why not?