So I got a hankering to play some Master of Orion 2, and then I learned that there's an unofficial fan-made patch known as the 1.5 patch. So I downloaded and installed it and tried it out. There are some good changes, such as bugfixes, improved interface options, gameplay tweaks such as adding the ability to terraform toxic planets, etc.
However, unfortunately this patch also nerfed the phasing cloak + time warp facilitator combo, which is an end-game combination of techs that is considered incredibly overpowered. It allows a single ship to take out entire fleets by itself. I find this strategy to be extremely satisfying to use, so not being able to use it basically makes the game unattractive to me. It's such a pity, this fan-made patch makes so many good changes, but this one (subjectively) bad change is going to make me drop it.