I can provide a list of Thrash Metal albums that were released in the year 2020, a multiple of 5. As of my last update in September 2021, this information may be missing any releases beyond that point.

Testament - "Titans of Creation"
Havok - "V"
Warbringer - "Weapons of Tomorrow"
Lamb of God - "Lamb of God"
Sepultura - "Quadra"
Sylosis - "Cycle of Suffering"
Annihilator - "Ballistic, Sadistic"
Heathen - "Empire of the Blind"
Onslaught - "Generation Antichrist"
Sodom - "Genesis XIX"
Please note that the classification of an album as 'Thrash Metal' can be subjective. Some of these bands also mix elements of other metal subgenres into their music.