In 2020 - are there any viable Linux block-level replication alternatives for DRBD? [closed]

For DBs and DB-aware & dependent applications their proprietary replication is always preferred over the "generic" block-level one due to many reasons, DB consistency is one of those. So use SQL Server Availability Groups (AGs) available with some limitations even with a Standard version of SQL Server since 2014 or 2015, use MS Exchange DAG, SAP HANA, AeroSpike replicas etc. I wouldn't do DRBD in 2020 due to it's rather poor I/O performance especially with an all-flash configurations, DRBD is clearly made for spinning disks and high latency non-RDMA networks back in early 2000s, and extremely poor protection against split brain issues. Virtual SAN technology you can find as a part of the major hypervisors is another good option to DB's built-in replication tech.