These days, I use an SSD for each OS —Windows 10 to play games, Ubuntu for everything else— and it works perfectly. Before the cheap SSD era I found dual booting to be a nightmare, though it taught me a lot about GRUB workarounds :)
Even with SSDs I still find dual booting to be painful enough to avoid.
Mainly because of how disrupting it is to have your dev environment torn down when you reboot and then having to set it all back up when you come back. Even with tmux and using resurrect it's not a seamless experience. This is an issue even with a few second turn around time on the dual boot itself.
Around 8 or 9 years ago I used to dual boot, then I transitioned to a Linux VM with Unity mode (vmware workstation's seamless mode to run apps in their own floating window) then to WSL 1 and now WSL 2. The only way I think things will get better is going native Linux with a GPU pass through KVM based VM running Windows to play games from Linux at native speeds without dual booting but it's a huge pain to set this up properly.
