Of course there are two different rhythm guitar tracks throughout Sepultura's classic albums. I don't think the OP questioned that. The question was: were those two rhythm guitar tracks both played by Max Cavalera rather than one by each guitarist, for some reason, like James Hetfield always did in Metallica (since Dave Mustaine's departure), or like Kerry King pretended to have done in Slayer at various times (but very, very likely didn't, at least not until the 90s).
There's no reason at all to imagine this was the case for Sepultura, ever. No particular mention in the credits like "all rhythm guitars" under Max's name (the 'Arise' booklet says "rhythm guitar" for Max and "'lead guitar" for Andreas; the singular used for the term "guitar", rather than the more widely used plural "guitars", referring to the recorded parts, could either mean they had the instrument/role in mind... or just, you know, that they were still struggling with English at the time, as evidenced by the mention "Lyrical assistance and translation by" followed by two non-members' names). No such practice was ever mentioned anywhere (as far as I know). Andreas Kisser played circles and all kinds of other shapes around Max Cavalera as a musician at the time (and probably still does), so if anything, should they, for whatever reason, have decided to have all rhythm guitar parts played by only one of the two, the logical and practical choice would have been Andreas, not Max.
Last but not least, there's a reason everybody knows that Hetfield prohibits (or used to prohibit) Kirk Hammet from playing rhythm guitar parts in the studio: that's the same reason everybody knows Paul McCartney played the drums on a number of late-period Beatles tracks instead of Ringo Starr: because it's totally unusual and out there. Under normal circumstances, band members play their respective parts on the album. The drummer plays the drums, and when the band has two permanent guitar players, they both play rhythm guitars. Unless otherwise indicated.
I maintain Max was a much better rhythm player than Kisser in terms of tightness, aggression, pick dynamics, and palm-muted heaviness. Same thing with Metallica and Hetfield. In fact, for Cannibal Corpse, Pat O'Brien plays both rhythm tracks on most of the songs as well.
The way I see it, if one guitarist's rhythm is significantly superior, he should track both guitars for the sake of a sense of uniformity(look at how James and Kirk play Battery and try putting both of them together on the same recording. Even if it's 100% in time, it'll sound funny because of how much heavier and aggressive the former is compared to the latter. If both guitarist have a roughly equal skill in tracking rhythms, then you get both of them to do it to get more dynamics out of the sound(2 different guitars being used as well).