Spotlight has to reindex files apparently? Various apps for me have been freezing, not just Damus.
“Re-indexing all files on a device can take time, potentially a few days. During this time, users may find their iPhones running a bit slow for searches and other tasks, and their battery may be consumed at a faster rate than normal.”
https://appleinsider.com/articles/23/09/19/ios-17-is-probably-hitting-your-battery-hard-today----but-thats-expected
“Re-indexing all files on a device can take time, potentially a few days. During this time, users may find their iPhones running a bit slow for searches and other tasks, and their battery may be consumed at a faster rate than normal.”
https://appleinsider.com/articles/23/09/19/ios-17-is-probably-hitting-your-battery-hard-today----but-thats-expected