> In theory, yes. In practice, no.

> I say this because in theory Drupal core supports postgresql 100%

> In practice, unless you actually comb through the code base if all the modules you install, you will have some that won't work. I have only tried this on Drupal 8 but I doubt much will change with 9 or 10.

Why no one mentions typo3 [1]

[1]https://docs.typo3.org/m/typo3/tutorial-getting-started/main...