The brunt of it depends on the dose and what that dose is translated into TT by your body (and of course, genes). The amount really and truly does have the biggest deciding factor in how slow or fast the changes occur, rather than genes.
I can almost guarantee you that a higher T level will have an effect on your voice (especially if your T levels have never been beyond what your body considers normal for it at that 198). I seriously doubt that Arnold Schwarzenegger or Jessie Ventura would have those super low, deep voices if they hadn't been messing with roids and at exceptionally (even dangerously) high doses for so many years, as just two examples (I don't think there's a single professional AAS-bodybuilder alive that doesn't have that effect going on. I'd be shocked if there were an exception out there, TBH).
So if you're really concerned about it changing your voice at-all, I wouldn't go on TRT unless it's medically necessary or until or unless you changed your mind and weren't concerned about voice changes anymore. OR, to simply opt into the very low and very slow WPATH plan where it's barely just enough until or unless they up it very gradually over those 3-6 months (and its for that reason I don't recommend anyone NOT on that dose plan to put any stock at all into their projected rates of changes because those WON'T apply to those being shotgunned on cismale levels straight off the bat; as I was. From the start my TT was into the 1,000 to 1,300 and even close into 1,400 ranges. Almost inhuman ranges, by and large. That's why some of my changes did in fact happen so very quickly e.g. voice getting scratchy and more rebellious of holding a singing tune overnight. It broke long before their projected 3 months and hard. Its still not settling yet. It happened so quickly in fact that it wasn't just annoying but really hurt at times).
On the other hand, it is also possible Estrogen will have an effect on your voice because it can cause increased vascularity and swelling in the vocal folds as well. So either way there's a chance your voice will change from one or the other. You'd just need to consider which way you'd hate it changing more (I'm pretty sure higher Estrogen can lend a helping hand into getting a super high-pitch, even screeching voice in those who'd always had a low T level. My grandmother had been on the old-school HRT for about 25 years after she'd had her goods removed at age 20 and now her voice can actually hurt people's ears, it's so screechingly and even unnaturally high. Nobody has pipes quite like her). It's considered a rarity on everything I've looked into about it, but it can still definitely happen. Although whether that's possible to happen quite to that level for you, that's anybody's guess. It probably only happened to my grandmother because they knew about nothing back then and it was probably way, way, way too much but anyway, I'm just saying that either way you should expect some changes whichever route you go.
That all stated, if you do go the T route, I'd have to say you would have the best experience and because of your voice concerns on a very low and very gradually increasing dose initially. Avoid the higher until or unless you like it. Or again because of your voice concerns, to try the Estrogen first (although if you really want to transition fully to male that might have other, unwanted effects if they're not already present. So be prepared for that too).
Also though, if you do have both hormones, perhaps it could instead be a matter of blocking one or the other of them, which could also assist you rather than raising one or the other. I would definitely discuss that option with your Endo to see if that can do something instead. From personal experience, having both of them fighting each other felt pretty bad for me for the first couple months on T (I image that is likely one of the factors for why 'shotgunning' into male levels immediately is not commonly done; to give the body time to adjust better first). It wasn't until the T gained the dominance over the E that I didn't feel weird anymore so that's why I'm thinking you could try blocking the E or the T instead, to get rid of what's causing the trouble right now.
