@Gal54 Unfortunately the A90 is not eligible for Android 13, debuted with Android 9. See some information in this article https://www.androidheadlines.com/2022/12/samsungs-forgotten-galaxy-a90-5g-gets-december-update
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 5.0,Android 13 .