So a new Switch port for Ys: The Oath in Felghana came out a couple months ago in Japan. I haven't seen a whole lot of chatter about it online in any language and I'd brushed it off thinking it was another DotEmu joint like the Origins port, but after a friend informed me that not only did DotEmu seemingly have nothing to do with this release, it runs more or less rock solid and boasts some modest, if nice extras, after getting back from Tokyo, I bought a copy using some spare store points I had lying around and... yeah, it's probably the best and easiest way to play this game portably now and it still kicks ass! Near 100% smooth FPS barring some brief drops during effects-heavy boss fights, voice acting that I assume is carried over from the PSP release, and optional updated character portraits that, in my opinion at least, are more tastefully done than what was seen in, say, the Vita ports of the Trails in the Sky games, even if there's maybe still a bit of an aesthetic clash with what's still very much so a mid-2000s Windows game at heart.
But my favorite extra, one that I'd completely overlooked until said friend informed me, was that it also lets you play the entire game with either the PC-8801 or X68000 soundtracks for Ys III (which Felghana is a remake of, for those unaware), which is a great touch! I've procrastinated on playing the pre-6 Ys games over the years because I just used to not be too keen on how the bump combat works. I still want to give them another proper attempt in the near future, but for now, this is a fun compromise as someone who's only familiar with the really famous tracks from those old games when Yuzo Koshiro was on music duty. I've been playing through the game with X68k soundtrack this time around and it's a good time; this footage below of a PC version mod that achieves the same thing demonstrates exactly how the game looks and sounds in practice. (Edit: Apparently the VO and bonus soundtracks are all things that got implemented in the Steam release a few years back, so I guess this one of those Falcom re-releases where they've gone back to maintain parity with Xseed's improvements. Thanks, @Ligana5!)
Less important, but equally novel to me is the fact that they've now added combat barks to Adol so he yells every time he attacks and while on the face of it, I could take it or leave it, it turns out he's voiced by the same guy who plays Bren in EX Troopers and has those exact same yells and inflections. So now every time Adol opens his mouth, I think of my dumbass anime son who likes eating hamburgers like some kind of Space Jughead and, y'know, there's worse things to be reminded of. 
Anyway, Oath in Felghana, as great as it's ever been and now you can play it portably at the proper framerate without having to deal with Steam Deck compatibility issues. There's no English option in this release and no announcement for a localization yet as far as I'm aware, so maybe stick to one of the other versions if you haven't played it before. But if you know the game or it being in Japanese is no problem for you, then rest assured, they did right by this game, and I hope Falcom gets around to at least doing Ys 6 in this same manner if circumstances prevent them from redoing Origin again.
