How to alter tables safely to set row_format as Compressed or Dynamic in Mariadb Galera Cluster?

We have some tables with row_format=Compact. The biggest table is around 30Gb, so how safely i can alter tables and set the row format as Compressed for the big table and Dynamic for other three tables which are under 10GB each? It is a cluster with three nodes with mariadb v10.4.12 and Galera 4. Running DDL / alter tables and change the row format can leads to cluster blocking and maybe it took long time! Can anyone help and guide me how i can do it? Do you think using RSU mode helps here and is it safe since we talking about changing the row format?