@callmepadre7 , for anyone having the same question/problem and finding this topic (like I did). Opera gx has this feature but I think sometimes this bugs out, due to windows being 'idle' or something.

Solution for me, which is a bit weird but works:

1. Have both windows open next to each other.
2. Right click on the tab bar of the target window (you want the tab dragged onto)
3. (immediately) Drag the tab you want to switch onto the target window

This works for me. I think this takes the target window out of the idle state.

@callmepadre7 , for anyone having the same question/problem and finding this topic (like I did). Opera gx has this feature but I think sometimes this bugs out, due to windows being 'idle' or something.

Solution for me, which is a bit weird but works:

1. Have both windows open next to each other.
2. Right click on the tab bar of the target window (you want the tab dragged onto)
3. (immediately) Drag the tab you want to switch onto the target window

This works for me. I think this takes the target window out of the idle state.