No. The stock ROM does not affect SIM locks. Carrier restrictions are stored in the NVRAM partition, which the Extra Quality ROM does not overwrite.
You can find the official firmware on reputable mobile support platforms: HIGHWAY PURE - WIKO official wiko highway pure 4g stock rom extra quality
Even if your device is old, service centers use software checks. A non-official ROM voids any remaining support. Flashing back to stock brings the software status back to "Official." random Google Drive links
Avoid: 4shared, random Google Drive links, and "ROM downloaders" that ask for credit card information. official wiko highway pure 4g stock rom extra quality