[Bug]: [Windows+VFS] Nextcloud client launches, but is totally unresponsive

### ⚠️ Before submitting, please verify the following: ⚠️

- [x] This is a **bug**, not a question or a configuration issue.
- [x] This issue is **not** already reported on Github (I've searched it).
- [x] Nextcloud Server and Desktop Client are **up to date**. See [Server Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) and [Desktop Releases](https://nextcloud.com/install/#install-clients) for supported versions.
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/)

### Bug description

After starting windows and login, nextcloud is started.
But clicking the tray icon nothing happens, the app is totally unresponsive: I cannot close it nor click anything.
The windows explorer is also totally slow and unresponsive.
...

### Steps to reproduce

1. Upgrade from 3.17.3 to 4.0.1 client
2. Restart system
3. Nextcloud do not work anymore
...

### Expected behavior

Nextcloud works properly
...

### Which files are affected by this bug

Nextcloud client 4.0.1

### Operating system

Windows

### Which version of the operating system you are running.

Windows 10

### Package

Official Windows MSI

### Nextcloud Server version

31.0.10

### Nextcloud Desktop Client version

4.0.1

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

Updated from a minor version (ex. 3.16.1 to 3.16.2)

### Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

### Are you using an external user-backend?

- [ ] Default internal user-backend
- [x] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Nextcloud Server logs

```shell
Nothing logged
```

### Additional info

The client logs didn't log any errors.