What’s Your Favourite Method for Setting Up Dual-Boot or Multi-OS Environments on Dell Laptops?

Hi everyone,
I’m looking to gather insights, tips, and best practices from people who regularly install or manage multiple operating systems on Dell laptops. Dell machines often have their own quirks with BIOS settings, drivers, bootloaders, and hardware compatibility, so I’m curious how others handle dual-boot or multi-OS setups efficiently and reliably.

More specifically, I’d love to know:

Your preferred approach for installing two or more operating systems (Windows/Linux, Linux/Linux, Windows/macOS alternatives, etc.).

Which boot managers or tools you rely on—GRUB, rEFInd, Windows Boot Manager, Ventoy, or custom loaders.

Whether you install OSes on the same drive or separate SSDs, and why you prefer that method.

How you configure Dell BIOS/UEFI settings, Secure Boot, TPM, SATA/NVMe modes, and boot priorities for smooth switching.

Any driver or compatibility issues you’ve run into with specific Dell models and how you solved them.

Partitioning strategies you use for clean separation and easy recovery across multiple OSes.

Tips for avoiding conflicts or bootloader overwrites, especially when Windows updates or Linux reinstalls try to take control.

Your workflow for backups and recovery in a multi-OS environment—cloning, snapshots, system images, etc.

Any tools, scripts, or utilities that make managing multi-OS setups easier over time.

Overall, I’m hoping to learn from real-world experiences—what’s worked well for you, what to avoid, and what you’d recommend to someone setting up a stable dual-boot or multi-OS environment on a Dell laptop.

If you’ve experimented with different methods or found certain combinations that work perfectly (or terribly), I’d appreciate your guidance!

Thanks in advance!