Tipped Arrows Are Kinda Pointless...

... and it's mainly because of what it costs to obtain them. Either maxing out a villager and getting lucky for a useful potion effect, or fighting the Ender Dragon. By this point, most players are gonna have a strong bow, possibly with Infinity. Harming arrows (and Healing arrows vs undead) end up useless* because of their interaction with Power. Most of the other potion effects are kinda useless to have on an arrow except in niche scenarios. Even Slowness and Weakness, despite technically not being useless, end up having very little utility for the player by the time they can be obtained.

My proposal: Change the recipe to only require the normal potion.

Players are much more likely to be able to obtain blaze rods while at a point in the game where tipped arrows would still be useful to have.

As a bonus, you could include new recipes using splash and lingering potions, where the arrow will basically act like the potion itself, splashing in an area or lingering over an area wherever they land. These versions would make tipped arrows still useful to have in the late game without becoming overpowered.

*Yes, they're technically better than regular arrows on a crossbow. That's not saying much when crossbows are worse than power bows in damage. If someone wants damage, they're going to use a bow. Maybe firework rockets with a crossbow. Either way not a harming arrow. You could fix this by replacing the damage cap with a flat added damage and making them not stack with power.