Many cloud storage services, including Proton Drive, already implement chunked file uploads to enable resumable transfers. However, a static chunk size may not always be optimal, especially for users dealing with fluctuating bandwidth, mobile networks, or satellite internet.

To address this, I suggest the introduction of an initial network assessment upon first use of the app, which would:
* Run a speed test to evaluate latency, upload/download speed, and packet loss.
* Set a default chunk size appropriate for the detected network conditions.
* Offer a manual override option for users to customize chunk sizes based on their preferences, or when data limits prevent the running of an evaluation.

Additionally, incorporating dynamic chunk resizing could further optimize performance by:
* Reducing chunk sizes when network instability is detected to minimize failed transfers.
* Increasing chunk sizes in stable conditions to improve efficiency and speed.
* Adapting to mobile or satellite connections, where jitter and congestion fluctuate significantly.

Why This Matters for Proton Drive Users
Proton Drive’s core audience values privacy, security, and reliability. Many of these users operate in regions with limited connectivity, work with large encrypted files, or need highly resilient uploads for mission-critical data.

Implementing an adaptive chunk sizing mechanism would:
* Improve reliability, reducing the need for multiple retries due to failed large-chunk transfers.
* Optimize bandwidth efficiency, ensuring smoother performance across diverse network types.
* Enhance user control, giving power users the ability to fine-tune their upload preferences.

Implementation Considerations
I believe this feature aligns perfectly with Proton’s mission to provide secure and accessible cloud solutions. I would be delighted to discuss this idea further or provide any additional insights that may assist in its potential implementation.
Thank you for your time and consideration. I appreciate Proton’s commitment to innovation and user-driven development, and I look forward to seeing how Proton Drive evolves.