Running ride as different (non-root) user with sudo on Debian 10 and Mint 20.1 causes an abort

### Describe the issue you are having
On a terminal, running ride as a different user with sudo:
```sh
$ sudo useradd -m testuser
$ sudo -u testuser ride
```
causes the error:
```
No protocol specified
The futex facility returned an unexpected error code.
Aborted
```

### Did you connect to an already running interpreter or start the interpreter from RIDE?
N/A

### How do you reproduce the issue?
See above. Any pre-existing non-root user will seemingly cause the error.

### Paste the contents of Help → About (Shift+F1)
```
IDE:
Version: 4.4.3533
Platform: Linux x86_64
Date: 2021-05-27 13:00:00 +0200
Git commit: df8ff379faa5fbca6eb96dcc91b1e7d02874460c
Preferences:{
"kbdLocale":"en_GB"
}

Interpreter:
Version: 18.0.39712
Platform: Linux-64
Edition: Unicode/64
Date: Dec 11 2020 at 01:07:55
```

Reproduce the failure from a terminal with `sudo -u testuser ride` after creating `testuser` on Debian 10 or Mint 20.1, and capture the `No protocol specified` and futex errors. Trace the application startup path from this invocation; done means RIDE launches successfully as a non-root user without aborting.

Written by the indexing model from the issue text.