It's worth pointing out that CrashPlan's business client app uses Electron (because the Java client app for home users wasn't bloated enough). That's reason enough for me to look elsewhere.
According to their website you continue using the same Java app: Do I need to install a new CrashPlan app?
No. The conversion process automatically updates the CrashPlan app on your computers. Instead of the green-themed CrashPlan for Home branding, you'll see the blue-themed CrashPlan for Small Business branding.
[0] https://support.crashplan.com/Subscriptions/Migrate_your_Cra...