Unless there's a very good reason [that I'm missing] why nextcloud has never been stable, I would like to report that it works perfectly fine on amd64 with default flags and basic usage.
Sanity check failed: > www-apps/nextcloud-20.0.5 > rdepend arm stable profile default/linux/arm/17.0 (1 total) > dev-php/pecl-imagick > rdepend arm dev profile default/linux/arm/17.0/armv4 (35 total) > dev-php/pecl-imagick > depend arm64 stable profile default/linux/arm64/17.0 (9 total) > >=app-admin/webapp-config-1.50.15 > rdepend arm64 stable profile default/linux/arm64/17.0 (9 total) > >=app-admin/webapp-config-1.50.15 > dev-php/pecl-imagick
x86 done
amd64 stable. Closing.