For various reasons, did a fresh install.
Going through Software Center to install Vivaldi snapshot just seemed to jam half way so i went through the terminal instead and it installed in a flash! Even the program icon was in the menu (with no need to reboot as it happens with some distros)!
Following packages will be installed:
ffmpeg-chromium vivaldi-snapshot
Total size of package(s): 69.14 MB
There are extra packages due to dependencies. Do you want to continue? (yes/no)yes
Downloading 1 / 2
Package ffmpeg-chromium found in repository Solus
ffmpeg-chromium-80.0.3987.132-7-1-x86_64.eopkg [cached]
Downloading 2 / 2
Package vivaldi-snapshot found in repository Solus
vivaldi-snapshot-3.2.1950.3-244-1-x86_64.eopkg (68.2 MB)100% 3.24 MB/s [00:00:00] [complete]
Installing 1 / 2
ffmpeg-chromium-80.0.3987.132-7-1-x86_64.eopkg [cached]
Installing ffmpeg-chromium, version 80.0.3987.132, release 7
Extracting the files of ffmpeg-chromium
Installed ffmpeg-chromium
Installing 2 / 2
vivaldi-snapshot-3.2.1950.3-244-1-x86_64.eopkg [cached]
Installing vivaldi-snapshot, version 3.2.1950.3, release 244
Extracting the files of vivaldi-snapshot
Installed vivaldi-snapshot
[✓] Syncing filesystems success
[✓] Updating dynamic library cache success
[✓] Updating mimetype database success
[✓] Updating icon theme cache: hicolor success
[✓] Updating desktop database success