Come on.

‘Welcome to the Exile Guild ~The incompetent S-rank party will banish more and more talented adventurers, so collect the weakest and create the strongest guild~ 1 (Dragon Comics Age) - Yusuke Araki’

Is not a reasonable name.

I get:

ようこそ『追放者ギルド』へ ～無能なＳランクパーティがどんどん有能な冒険者を追放するので、最弱を集めて最強ギルドを創ります～ 1 (ドラゴンコミックスエイジ) - 荒木 佑輔

As 87 Unicode characters and 241 bytes in UTF8.

So this unreasonable name does fit.

I don’t see this limit changing any time soon because in hitting it, you’re naming files unmanageablely. Pretty sure that is what the main devs will say and concentrate on more important stuff. If you present them with nice code for it, maybe they will take it. If not, it will mean carrying those patches on own folk. Though maybe you could get them to take bits of it making the carrying easier.

No, that’s not needed I think.

People doing it for themselves is very common. I’ve fixed bugs in all kinds of things, including the Linux kernel. People doing it for money is a world I don’t know, but I know of. Example : https://console.algora.io/

You can also just hire a contractor, or team, to do open source. I’ve done that, at the developer end (Qt4 Windows port work).

Wine is, old. It’s from 1993. The code is great though. Over 12 years ago, when stuck on Windows for work, I used to use it as a reference when the MSDN didn’t cover stuff. But I wouldn’t recommend it though as a way of living on a UNIX. If you are depent on Windows apps, you aren’t ready to leave. Wine does not make a UNIX into Windows. Changing underlying implementation bring out bugs in software above. With closed shit, you can’t fix them. Wine does however, give you a route to running a piece of Windows software, if you have the time to give that software the set of Windows bug it expects, “Bug for bug”. Valve have basics lovingly wrapped Windows games with what each game needs.