In Riftbound combat, after both players pass focus during a showdown with no when I attack/defend abilities, can players take actions or play reactions before moving to the next step?

Ruling: After both players pass focus in a row during combat, the game goes straight to resolution. Players cannot take additional actions at that point.

Nuances:

• Reactions cannot be played "at any time" as the reminder text suggests - they can only be played when you have priority, which occurs in response to other things getting played or activated (specifically when there is a chain)
• Reactions can be played as actions when you have focus
• You cannot play a reaction in the middle of an opponent's turn unless it's in reaction to a triggered/activated effect or a spell they played
• You cannot react to a plain unit being played or moved
• There is no window in combat where reactions can be played but actions cannot