While Pundi X have yet to make any official announcement on the Pundi X reward token launch, you should REDEEM your PUNDIX tokens if you have staked them in your FX Wallet. You are already not earning any FX rewards by keeping them in stake anyway.
PUNDIX tokens that stay staked in your FX Wallet are NOT included in the daily snapshot as described in Request for Comment: Pundi X Reward Token (Project name ‘PR’) | by Zac Cheah | Pundi X | Medium . They need to be in ETH wallets with which you are in control of the private keys.
Daily snapshots would have started from 21 June 2021 and lasting for 30 days. The average PUNDIX holdings are then used to determine the number of Pundi X reward tokens you can claim.