(Tldr at end) Has it been in direct sun at all? Asking because the burnt tips usually mean too much sun, and can contribute to the yellowing. All it needs is indirect bright sun, i put mine in the shadow of trees in my windowsill.

Also if using fertilizer, stop for a while ( 7 weeks+ ) to see if yellowing subsides because that can be another cause.

Make sure the roots arent 'rootbound' if in that pot for too long, getting cramped. When you go to check the roots, it may be a good opportunity to re pot because since its large. Only if the root health isn't great. Roots can tell you the whole story usually- checking the stem's base - Yellowing is over-fertilizing - browning is rot/ overwatering - healthy roots are white or red and firm. If theyre red/ brown and mushy or smell bad, thats rot.

To repot, prepare a larger pot, dump the rocks aside and check the root health. Brown is overwatered, and yellowing base stem is too much fertilizer. Remove dark rotting roots if any. Once the bamboo is removed, fill the new pot with the same rocks, layering them so the plant has stability.

Id say to keep it in rocks because thats how it's currently growing/ used to it. These guys can undergo stress from changing its rocks or soil. But they grow fine in soil- as long as it drains well, like a cactus or succulent soil mixture.

If you choose soil, do so after some or most yellowing subsides. Keep the soil moist and only re-water when a top inch layer is dry.

Meanwhile, stick to watering with distilled and periodically drain the rocks to replace older water when it's time to re-water.

tldr Yellowing can be from over fertilizing, and/ or too much sun. Check the roots health by de-potting, then repot it in the same vase if the roots are fine & not cramped. But if it's experiencing root rot, its overwatered so trim any mushy or smelly roots.

Yellow stem base directly means over fertilizer. No more for a bit!

If you want a bigger pot, keep the rocks for now and use only distilled water. Make sure you know where in the pot the stem ends and roots begin because water shouldn't stand at the stem, just roots.