AppImage won't start under Ubuntu 24.04

[IceFreez3r]

I downloaded the AppImage 6.3.0 from the website, made it executable and tried to start it, which then failed with

dlopen(): error loading libfuse.so.2

AppImages require FUSE to run. 
You might still be able to extract the contents of this AppImage 
if you run it with the --appimage-extract option. 
See https://github.com/AppImage/AppImageKit/wiki/FUSE 
for more information

I installed FUSE with

sudo add-apt-repository universe
sudo apt install libfuse2t64

as described in the link of the error and then tried again. The error changed to

[32955:0220/091543.826032:FATAL:setuid_sandbox_host.cc(158)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /tmp/.mount_Quiet-acmKz8/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap (core dumped)

I downloaded the 6.6.0 AppImage from the GitHub release page, but still get the same error.