Undo in PS 2021

Greetings -

I just purchased a Mac Mini with the M-1 chip, which forced me to switch from Photoshop CS6 (no longer compatible) to PS 2021.  In so doing, I discovered that the undo command only takes me back one step, whereas with CS6, I could undo as many steps as necessary.  Now, if I understand correctly, one has to go to the history panel to go back more than one step.  

My question to the community: Does the undo command in Photoshop 2021 only go back one step, or is can the undo command be altered to step back as previous versions of Photoshop permitted?

If this is true, count me as dissappoionted.  Undo was such an essential plank in the whole non-destructive editing concept, and while one can still go backward using the history panel, it is time consuming and highly inefficient.  Clearly, the software engineers that made that tweak are not graphic designers, and have little sense about how designers structure their workflow.

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