Chore: small fixes and todo comments

[shark0der]

Changes proposed in this pull request

• Add a few todos for bugs and missing implementations
• Remove unused variable
• Fix missing parens caught by audit

Test plan

Added todos have corresponding issues and will be tested when implemented.

Checklist

• Rebased the base branch
• Attached corresponding Github issue
• Prefixed the name with the type of change (i.e. feat, chore, test)
• Performed a self-review of my own code
• Followed the style guidelines of this project
• Made corresponding changes to the documentation
• Didn't generate new warnings
• Didn't generate failures on existing tests
• Added tests that prove my fix is effective or that my feature works

Review

When reviewing a PR, please indicate intention in comments using the following emojis:

• 🍰 = Nice to have but not essential.
• 💡 = Suggestion or a comment based on personal opinion
• 🔨 = I believe this should be changed.
• 🤔 = I don’t understand something, do you mind giving me more context?
• 🚀 = Feedback

[roxdanila]

👍