Unfortunately, it seems Crawford hasn't made up his mind yet.
It would seem that this question was asked to Jeremy Crawford a few months before this post and I must have missed it when answering the question.
does "if spell is in your class's spell list" count as a class
requirement to use spell scroll with Use Magic Device?
No, but as DM, I let a thief try to use a spell scroll by making an
ability check appropriate to the spell
The above answer is almost a direct contradiction to this Tweet approximately a year earlier:
Would the 'Use Magic Device' ability allow them to use scrolls? I can
see it either way, so I thought I'd ask.
The intent is that Use Magic Device does allow a rogue to try to use a
Then even later he flips again:
does the thief rogue's Use Magic Device feature cover the use of spell
Use Magic Device is intended to work with spell scrolls.
In the end it is up to the DM on whether to allow this to work. It seems that Jeremy Crawford has yet to make up his mind on it entirely but the last Tweet seems to be that it is intended.
DMG page 141 might be of some help here (Casting Spells):
The ability check is still required to cast from the scroll but, as a Rogue has no spell-casting ability score, their's is always treated as zero when casting spells from magic items. It would stand to reason that a check would be in order to cast the spell from a scroll as well, the only issue is that it is just a d20 roll for them.
If you don't have a spellcasting ability—perhaps you're a rogue with
the Use Magic Device feature—your spellcasting ability modifier is +0
for the item...
It does go on to say that your proficiency bonus does apply but this is specifically called out as an ability check so your PB does not apply to those. If it were a Wand or Staff, is what I believe the PB is intended to use.