Steps to reproduce:

1. Generate a single biome (jungle) world with the seed "4577860557964729658".
2. Execute the following command: "/execute in minecraft:overworld run tp @s 191.99 65.50 -316.60 -616.05 -4.35".
3. The upper half of a tree is floating over a ruined portal.
   
   This is different from MC-204633 because there is no cave air involved, and from MC-273441 because ruined portals are not underground structures (at least in most cases, including this one).
   Trees are being cut off at different heights, so anything between one log and most of the tree might be missing.

Instructions for 25w02a and 25w03a (outdated):
Seed: "-1311658802960653969"
Position: /execute in minecraft:overworld run tp @s 96879.56 73.43 97591.35 -515.85 2.85
Note: The tree that generates in this location is cut off horizontally by the ruined portal, but no parts are floating anymore.

Seed: "1296682046443418838"
Position: "/execute in minecraft:overworld run tp @s -362.40 69.64 275.89 82.20 11.25"

Seed: "-1311658802960653969"
Position: "/execute in minecraft:overworld run tp @s -4086.76 82.00 9179.84 1302.00 -0.90"