Story
As a user I want to easily see and understand the workflow to invest and lock/boost my investment. I want each step in that process to count as a checkpoint for applying any boosts, including the distribution step.
Solution

Next to every button that checkpoints (Vault deposit, Vault withdraw, claim rewards) there could be a tooltip that explains checkpointing.
If a user has no boost it would be permanently open, dissuading uses from taking checkpoint-able actions until they have first locked for their boost.
If they already have boost it opens on hovering it.
Story
As a user I want to easily see and understand the workflow to invest and lock/boost my investment. I want each step in that process to count as a checkpoint for applying any boosts, including the distribution step.
Solution
Next to every button that checkpoints (Vault deposit, Vault withdraw, claim rewards) there could be a tooltip that explains checkpointing.
If a user has no boost it would be permanently open, dissuading uses from taking checkpoint-able actions until they have first locked for their boost.
If they already have boost it opens on hovering it.