Thank you for your answer, the install time is taking a very long time. Not to be rude, but more than 2 hours (probably 12 hours, If I continue at this pace) for installing a web browser is a bit long…
That’s because you are building the browser from source. Usually when I install a package from the AUR I look if there is a bin version which is a prebuilt binary. There is no ungoogled-chromium-bin available