Thirsting Blade question about number of attacks

If you have a weapon in each hand and Extra Attack, neither light, you can use Extra Attack to attack with each of them on your main action.

But, if you have Thirsting Blade, and no Extra Attack, can you attack once with the non-Pact weapon, and then make another attack with your Pact Weapon, or would you be locked in to a single attack after you make the non-Pact attack?

Does a Hexblade Warlock’s Hex Warrior feature allow them to use Thirsting Blade on a non-pact weapon?

My question is, Can I use Thirsting Blade with my non-Pact weapon?

Example, I have a +3 Magic Longbow that I used the Pact of the Blade ritual to transform it into my Pact Weapon. (I can Only pull this now when I summon it and can’t get a sword)

I can use the Hex Warrior to channel my will through 1 weapon I touch to use my Charisma Modifier for the attack and damage rolls. (once per long rest)

Would I still be able to attack twice when taking the attack action with the Sword even though it’s not my Pact Weapon?

  • The Hex Warrior feature says (XGtE 55-56) :

    The influence of your patron also allows you to mystically channel your will through a particular weapon. Whenever you finish a long rest, you can touch one weapon that you are proficient with and that lacks the two-handed property. When you attack with that weapon, you can use your Charisma modifier, instead of Strength or Dexterity, for the attack and damage rolls. This benefit lasts until you finish a long rest. If you later gain the Pact of the Blade feature, this benefit extends to every pact weapon you conjure with that feature, no matter the weapon’s type.

  • Thirsting Blade, PHB 111

You can attack with your pact weapon twice, instead of once, whenever you take the Attack action on your turn.

Can a multiclassed 2019 UA artificer/Pact of the Blade warlock use Thirsting Blade and Arcane Armament to make 3 attacks per Attack action?

I was reading up on the classes in D&D 5e. I saw that the 2019 UA artificer had a feature that allowed them to attack twice that wasn’t the Extra Attack feature, called Arcane Armament.

The Arcane Armament feature allows a second attack during the Attack action so long as the second attack is made with a magic weapon. The pact weapon from the Pact of the Blade warlock meets this requirement.

Pact of the Blade warlocks can also take the Thirsting Blade eldritch invocation for yet another attack. I have read that using Extra Attack and Thirsting Blade doesn’t result in 3 attacks.

Could I make 3 attacks in one Attack action, including one from Arcane Armament and one from Thirsting Blade? Or would it run into the same restriction as getting the Extra Attack feature from different classes?