On infamous host erlangen zypper never asks and decides on its own:
erlangen:~ # zypper se -is libheif1
Loading repository data...
Reading installed packages...
S | Name | Type | Version | Arch | Repository
---+----------+---------+--------------------+--------+-----------
i+ | libheif1 | package | 1.17.6-1699.4.pm.3 | x86_64 | Packman
erlangen:~ #