[Bug]: Energy Impact of "99%" on macOS when e.g. tethered via Smartphone and firewall like TripMode is blocking access

[DivineDominion]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Preventing Nextcloud Desktop on macOS to connect to the internet makes the desktop app to drain the battery real fast. Activity Monitor reports 99% energy usage. Have confirmed nothing else was running.

I modified 1--5 files that are inside my Nextcloud folder which might've triggered the desktop app to try to sync.

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Possible related enhancement: #2284

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macOS 12.3.1 (21E258)

Nextcloud version 3.4.4git (build 9585)
Git revision a3ece50
Using Qt 5.15.3, built against Qt 5.15.3
Using 'Secure Transport, macOS 12.3'
Running on macOS 12.3, arm64

Steps to reproduce

Block internet access via an app like TripMode or LittleSnitch

Expected behavior

The Nextcloud app does not sync since no connection to the internet is available without using significant energy (maybe trying to connect a lot?)

Which files are affected by this bug

(none)

Operating system

Mac OS

Which version of the operating system you are running.

macOS 12.3.1 (21E258)

Package

Distro package manager

Nextcloud Server version

20.0.5

Is this bug present after an update or on a fresh install?

Fresh desktop client install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

Evidence! :)

[hoeflehner]

I can confirm the issue and a solution would be great! 🙏

[onemenzel]

I confirm this, too. It bugs (pun intended) me everytime I'm leaving nextcloud desktop on when I'm using a tethered network since years. I have 300% CPU usage just for that one and often I only notice it after my battery is already drained quite a bit.