The Beta has started in some counties such as Germany but seems not available in the uk yet. As far the stable official release not likely that will roll out till nearer the end of the year. The latest devices will be first in line.
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 .