Reclaiming space on secondary blocks whole replica-set?

Having a 4-node replica set (PSS + Hidden arbiter) and performing reclaim after deletion.
Using RSU method, isolating one of the Secondary nodes (deleting data and resyncing), will other nodes in replica-set continue to serve writes and reads or the recovering-secondary blocks the Primary’s oplog while recovering hence blocking all writes that are performing during STARTUP2 phase of recovery?