This bug still exists in 1.21.4, I just ran into it.
Seed: -124847946109498041
The Eye points to XYZ coordinates 1552 / 0 / 95.4, but the actual entrance of the stronghold is much higher, around Y=34, making it very hard to find without the debug menu. Even digging out the whole column from surface to bedrock didn't help, because it's also offset to the side thanks to this other bug: MC-253394
Gazoche
This bug still exists in 1.21.4, I just ran into it.
Seed: -124847946109498041
The Eye points to XYZ coordinates 1552 / 0 / 95.4, but the actual entrance of the stronghold is much higher, around Y=34, making it very hard to find without the debug menu. Even digging out the whole column from surface to bedrock didn't help, because it's also offset to the side thanks to this other bug: MC-253394