Hey @JIWON!

Agreed — this is almost certainly an Arc-specific quirk, not Chromium itself. Known Arc pain points match your symptoms so you are not alone!

We've seen the following fixes come in handy in previous, similar situations:

• Clear site data for your workspace in Arc, then hard reload. This often resolves Arc-only infinite loads.
• Try a clean Arc profile with no extensions to rule out extension interference/caching oddities.
• In DevTools, check if CDN/UI assets (e.g., login.js, databricks-ui-assets) are blocked, zero-byte, or pending; Arc sometimes mishandles these while Chrome is fine.
• If device posture/login is in the path, add Local Network Access allowlists in Arc (arc://settings/content/localNetworkAccess) — e.g., auth.community.com, app.community.com; avoid “:443”.

Ultimately - the suggestion is to use Chrome/Safari as a workaround (Arc is less supported internally).