福:⺭is the so-called “spirit” radical, which in fact the left-compressed version of the altar radical (altar=“jackhammer” in WK radical naming convention).
被: this is the “cloth” radical, with the additional stroke. In reality, ⻂is the left-compression variation of ⾐. WK chose to skip the distinction.
cf, any resource about sinogram radicals, such as:
https://kanjialive.com/214-traditional-kanji-radicals/#⽰