Testing if scoreboard > scoreboard for Bedrock

/scoreboard players test @p levelUpXp @s xpNeeded *

So as you may know Java has "/execute if score", what I know is that many amazing map creators are limited due to Bedrock lacking this. Some examples of what it could be used for is a leveling system with additive needed xp! (A leveling system like this is sorta possible, but nothing to the extent of what you could do with this!) So what I'm thinking is some change to the bedrock "/scoreboard players test" command. Obviously the "/execute" from Java would be cool, but that's not what this is about. So let's look at the "/scoreboard players test" command currently.

/scoreboard players test @p levelUpXp 100 *

The command above will test for the nearest player's "levelUpXp" score, and if it's 100 or above then it'll return true, leading into a conditional command block chain. But what if we could replace the numbers with other scoreboards?

/scoreboard players test @p levelUpXp @s xpNeeded *

The command above could test for the nearest player's "levelUpXp" score, and if it's equal to "xpNeeded" or more, then return true. Making a level up system that would add 50, or multiply by 2 the "xpNeeded" when they leveled up, and not having it stuck at checking if it's 100 or above, (or having infinite levels instead of command blocks manually checking more xpNeeded every level,) would add soooo many possibilities, as well as better progression. The example I'm using isn't even that good compared to the other stuff you could do with this.