Howdy, gang.
Ah, dearie me; I've gone & done it again, haven't I?
I was having a nose around the system earlier, and suddenly realised that, yes; Discord is one of them there "Electron"-type apps, ain't it? Which makes it prime material for the 'portable' treatment, don'tcha know..?
So; here it is; currently @ v0.0.18.
Same principle as various other portables; the config stuff remains within the portable's directory/'container' at all times, and is merely sym-linked out to the expected locations at run-time. At shut-down, those sym-links are then removed, ready for next time.
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You should always be able to find the newest version - time permitting! - at the following URL:-
(Download; unzip; place anywhere you like.....outside the 'save', naturally! Click to enter, click 'Launch' to start. Easy-peasy.)
What more can I say? Enjoy!
Mike.