ZDoom

You can set mouse input to two modes: regular and touchscreen-like. It seems you got the latter active on your Linux system.

So Windows 11 will remain my main, but I do hope out Linux will mature beyond this point, because I could get used to it. I've been using Windows 11 for 3 years now, with a few small tweaks it works just as well as older versions. What I did was first to reactivate the old task bar (Google should ...

Has performance of that improved in recent years? I had to use such a setup at work a few years ago and it made Windows unbearably slow even on a reasonably performant system. It hard to answer without the specific use case since it depends entirely on what you're using it for and how much that use ...

With that said, with your specific problem you'd probably get what you need by just running Windows in a virtual machine on Linux. Has performance of that improved in recent years? I had to use such a setup at work a few years ago and it made Windows unbearably slow even on a reasonably performant ...

Those duplicates are filtered by the "Filter" column, which contains "chex" for Chex Quest.
This was done this way to avoid special handling in the code.

You have to fetch the DLLs from the official distribution package - they do not get built by the project

It's a really poorly designed format but that should be enough to write some identifying code.

The main problem here is that I have no idea how to detect .mptm files, they look like standard .it files with the exact same header as them. Right now the only solution would be to default to DUMB for all .it files. I wouldn't do that for other formats - I have found several .s3m files that sound ...

The error is in the mod, we cannot do anything about it.

ZDoom's startup code is quite messy and it may well be that something went wrong when the startup code was refactored.
I also noticed that with recent versions the startup screen wipes several times, so something's definitely not right there.

I did some closer checking. The error message does indeed appear but I never suspected anything wrong because in-game music sounded correct. From the looks of it the title music played over the loading screen is the only thing being affected by this. And this piece only plays for a few seconds so it ...

The mod is wrong here. These options were only added in 4.14.2 and it was clearly conveyed that both must be set to avoid problems. Apparently some modder did not test this properly or only with a pre-release version.
It works in 4.14.1 because it ignores these unknown properties.

This is not possible directly in DECORATE or ZScript because DSDHacked gets applied after ZScript and DECORATE. These actors simply do not exist yet when your patch is run.
If you want to replace these you will have to use a CheckReplacement event handler.

This doesn't help me. Something about your setup must be different that it cannot find the sound font. Are you sure you are starting from the correct directory? I think the only way to find out what's happening is if you copied the entire folder (minus IWAD and PWAD content, of course) and uploaded ...

In that case you will have to investigate yourself what is different about your Hexen config.
It certainly has nothing to do with the game itself, for me it works in Hexen just like in all the other games.