It's an individual choice. Often the "TodesAnzeige" contains information or hints, nowadays also on Corona measures.

It seems that increasingly many see no use in a grave overloaded with flowers that need to be dumped after a couple weeks, or months at best. So they prefer a small contribution to one big wreath, perhaps accompanied by a contribution to a good cause they preselect for those who want to give more. That gives, say, one wreath each by the surviving spouse, the children, the club they attended for decades, and one by "everybody else". In those cases the family will usually select flowers themselves.

Likewise, an increasing number chose an urn in a wall that houses many urns over an individual grave (that often contains an urn rather than a coffin anyways).

Not that this is any help for OP, CZ may well differ.