Hey 👋
I think it might help to demonstrate what shift+F to open a new link does by a screencast here.
Below is a screencast I recorded on Edge:

It's like so:
- On a webpage, I pressed shift+F. Vimium showed "hints" for each anchor. You can see that "Orion Browser by Kagi" is "SM" in this case.
- I then pressed "S" followed by "M", then browser.kagi.com was opened in a new tab for me.
Now the same thing done in Orion:

browser.kagi.com was opened in the same tab instead of a new tab.
Does that help? Orion has been a booster for my remote working style by saving a ton of battery life, so I'm sticking with it even though this important workflow is not yet working 🙂 If there is anything I can help further, please let me know.