In a nutshell, the Tab S6 Lite (2022) is slightly faster than the 2020 generation, packing Qualcomm’s middling Snapdragon 720 processor instead of Samsung’s own Exynos 9611 chipset, and with Android 12 out the box, the newer tablet should enjoy significantly longer software support (at least in theory).
All the other stuff has essentially gone unchanged, from the not-too-shabby 10.4-inch screen with a resolution of 2000 x 1200 pixels to the decidedly unimpressive 4GB RAM count, decent 7,040mAh battery equipped with 15W charging capabilities, and perhaps most notably, handy built-in S Pen.