There are regular updates to many different handsets, so try not to get confused with others posts here on different phones.
Many of these are likely not the same release or handset as you have... so careful not to draw conclusions about other posts.
I am not sure about the A54 specifically, but one UI is samsung generic software and I would suggest that you update your phone to the latest update without concern.
Currently with the A54 I am assuming it was oneUI6.0 release around the December timeframe.
Do you know what the 'issues" that your husband experiences ?
You mention 'bugged' software and 'immediately had problems' but not about what these issues were?
There are some things like erasing the cache memory of the phone, and other things that can help to fix problems and incompatibility, so it is worth knowing what problems you are concerned about.
It I was you, I would update the oneUI6.0 as prompted.
Best
Smiley.
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User: Smiley
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My life is full of positives and negatives. I’m an electrical engineer.
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