From Engadget
Samsung One UI removed the all apps button, but you can easily get it back

Miss the handy all apps button that used to be on Samsung's One UI home screen? Fret not; it's a single toggle away.
TechBlastTechnology. Unpacked.UK & world technologyFrom Engadget

Miss the handy all apps button that used to be on Samsung's One UI home screen? Fret not; it's a single toggle away.