Turn a client project into a LinkedIn case-study post that reads as proof, not a press release

Project context: 3-month engagement redesigning checkout flow for a mid-size D2C brand.
The obstacle or challenge going in: Mobile checkout had 6 form fields and no saved payment info, and the team had never run an A/B test before.
What was actually done: Cut the form to 2 fields, added Apple Pay/Google Pay, ran a 4-week A/B test against the old flow.
The real result or outcome: Mobile checkout completion rate went from 41% to 58% over the test period.
Can I name the client, or does this need to be anonymized: Can't name them — anonymize as a mid-size D2C skincare brand.

Write this as a LinkedIn post using this structure:
1. Hook — lead with the tension in the result itself (the gap between where things started and where they ended), not with "Case study:" or "Excited to share a project we finished"
2. Situation — 2-3 lines of context, only what's needed to understand the stakes
3. Obstacle — what specifically made this hard, stated honestly, not softened into "a unique challenge"
4. Action — what was actually done, specific enough that a reader in a similar position could learn from it, not just "we implemented a strategic solution"
5. Result — state Mobile checkout completion rate went from 41% to 58% over the test period exactly as given, with no rounding up, estimating, or adding a number that wasn't provided
6. Close — one line on what this generalizes to for someone else in a similar position, not just "DM me to learn more"

If Can't name them — anonymize as a mid-size D2C skincare brand means the client can't be named, anonymize by industry and rough size, not with a fictional company name that could be mistaken for real. If any part of the result is unclear or unverifiable from what I gave you, flag it instead of smoothing over the gap.