If mentioning an article think it is helpful to post a bit more detail for context, rather than just the banner headline. The writer claims the February security update caused a lot of bugs but also says "Keep in mind that these bugs may be limited in reach to a small number of customers relative to the number of Galaxy A52s units presently active Even so, it may still affect some Galaxy A52s customers" https://www.sammobile.com/news/is-samsung-messing-up-galaxy-a52s-to-sell-a53/
Another one here, the forums mentioned is the Indian one but problems also reported here . https://www.androidpolice.com/samsung-galaxy-a52s-performance-issues-buggy-one-ui-4-update/
Overall problems have been reported with Android 12 but by no means universal and updates generally improve matters.
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 4.0,Android 12 Official Version.