Your biggest concern is if you overwrite the windows bootloader with the Grub2. What will happen then is that windows won't boot without the external Linux Drive.
If you're wanting the most braindead way to avoid that, go ahead and remove your Windows SSD before installing Ubuntu. There are better ways if you're more competent in Linux (unlike me)
Glad you asked.
Your biggest concern is if you overwrite the windows bootloader with the Grub2. What will happen then is that windows won't boot without the external Linux Drive.
If you're wanting the most braindead way to avoid that, go ahead and remove your Windows SSD before installing Ubuntu. There are better ways if you're more competent in Linux (unlike me)