There is a new pull request by yopito against master on the void-packages repository

https://github.com/yopito/void-packages nextcloudclient.302
https://github.com/void-linux/void-packages/pull/25287

nextcloud-client: update to 3.0.2, enable e2e encryption, enable testing
fix issue #16489

EVP_PKEY_CTX_set_rsa_oaep_md, needed by e2e, is supported since LibreSSL 3.1
see https://github.com/libressl-portable/portable/issues/547

A patch file from https://github.com/void-linux/void-packages/pull/25287.patch is attached