This should be set to 64MB, ref: link
“In general, transaction log files cannot benefit from instant file initialization (IFI). Starting with SQL Server 2022 (16.x) (all editions) and in Azure SQL Database, instant file initialization can benefit transaction log growth events up to 64 MB. The default auto growth size increment for new databases is 64 MB. Transaction log file autogrowth events larger than 64 MB cannot benefit from instant file initialization.“