Yes, it is.
Finally, it seems that /run/systemd/resolve/resolv.conf via symlinks works fine, so at the moment it works correctly. I will follow the next update.
Code
systemctl status systemd-resolved.service
systemd-resolved.service - Network Name Resolution
Loaded: loaded (/lib/systemd/system/systemd-resolved.service; disabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/systemd-resolved.service.d
└─resolvconf.conf
Active: active (running) since Wed 2020-01-29 20:16:31 CET; 51min ago
Docs: man:systemd-resolved.service(8)
https://www.freedesktop.org/wiki/Software/systemd/resolved
https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
Process: 23960 ExecStartPost=/bin/sh -c [ ! -e /run/resolvconf/enable-updates ] || echo "nameserver 127.0.0.53" | /sbin/resolvconf -a systemd-resolved (code=exited, status=0/SUCCESS)
Main PID: 23954 (systemd-resolve)
Status: "Processing requests..."
Tasks: 1 (limit: 4915)
Memory: 2.6M
CGroup: /system.slice/systemd-resolved.service
└─23954 /lib/systemd/systemd-resolved
Jan 29 20:16:30 openmediavault.local systemd[1]: Starting Network Name Resolution...
Jan 29 20:16:30 openmediavault.local systemd-resolved[23954]: Positive Trust Anchors:
Jan 29 20:16:30 openmediavault.local systemd-resolved[23954]: . IN DS 19036 8 2 49aac11d7b6f6446702e54a1607371607a1a41855200fd2ce1cdde32f24e8fb5
Jan 29 20:16:30 openmediavault.local systemd-resolved[23954]: . IN DS 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
Jan 29 20:16:30 openmediavault.local systemd-resolved[23954]: Negative trust anchors: 10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr
.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa 168.192.in
-addr.arpa d.f.ip6.arpa corp home internal intranet lan local private test
Jan 29 20:16:30 openmediavault.local systemd-resolved[23954]: Using system hostname 'openmediavault.local'.
Jan 29 20:16:31 openmediavault.local systemd[1]: Started Network Name Resolution.
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