Startup DB after moving filesystem to a new server

Hi experts, I would like to get a look at the following scenario.

Version DB, Source and Target: 12c EE non-ASM Linux Red-Hat

After moving the filesystems from one host to another, I understand that from the OH 12c I should do the following steps, for DB startup:

Before startup, I deleted an old DB version 19c:

--From ORACLE_HOME 19c

srvctl stop database -d <ORACLE_SID>
srvctl remove database -d <ORACLE_SID>

then:

--FROM ORACLE_HOME 12c

srvctl add database -db <ORACLE_SID> -oraclehome <ORACLE_HOME 12c> -spfile '<PATH spfile>/spfile_ORACLE_SID.ora'

then 2 options;

srvctl start database -d <ORACLE_SID> -o nomount
srvctl start database -d <ORACLE_SID> -o mount 
srvctl start database -d <ORACLE_SID> -o open