@kimarunas hi, answering there too for other readers, and adding as i did read a bit more about it.
Ray peat never stated that he hate manganese, there is one statement associated to him saying commun diet probably has enough if i recall correctly.
nuts and seeds can Also be high in zinc, copper, molydenum, selenium, many elements that have balancing or antagonistic effects on manganese, i have never seen someone mentionning getting symptoms associated to excess manganese from nuts, i have not experienced it either even while consuming from 400g to a kilo of nuts most days for months/years, including macadamia.
Fruits it depend wich ones, going by average values, fruits such as grapes, pinnaple, raspberries, Blackberries, strawberries have good or high amount of manganese per weight, and even higher amount per carbs/calories compare to lot of foods, These fruits are communly consumed bu fruits eaters living in northern enough climates. Other communly consumed fruits such as apple, pears, watermelon, are much lower.