Changed from wayland to xorg after logout and got this error as well.

[Carlos A. Parra F.]

Just switched from wayland to xorg and got this error immediatly after login.

ProblemType: Package
DistroRelease: Ubuntu 21.04
Package: chromium-browser 1:85.0.4183.83-0ubuntu2
ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17
Uname: Linux 5.11.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.1
AptOrdering:
 chromium-browser:amd64: Install
 neovim:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: pass
Date: Wed Jun 16 09:34:19 2021
ErrorMessage: new chromium-browser package pre-installation script subprocess returned error exit status 10
InstallationDate: Installed on 2021-06-15 (3 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
Python3Details: /usr/bin/python3.9, Python 3.9.5, python3-minimal, 3.9.4-1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.9ubuntu1
 apt 2.2.3
Snap.Changes: no changes found
Snap.ChromeDriverVersion:
 mkdir: cannot create directory '/run/user/0': Permission denied
 ChromeDriver 91.0.4472.106 (574f7b38e4e7244c92c4675e902e8f8e3d299ea7-refs/branch-heads/4472@{#1477})
Snap.ChromiumVersion:
 mkdir: cannot create directory '/run/user/0': Permission denied
 Chromium 91.0.4472.106 snap
SourcePackage: chromium-browser
Title: package chromium-browser 1:85.0.4183.83-0ubuntu2 failed to install/upgrade: new chromium-browser package pre-installation script subprocess returned error exit status 10
UpgradeStatus: No upgrade log present (probably fresh install)