For Julia development on openSUSE, the preferred method to install julia is via juliaup.
It is a version manager like rust's rustup that allows multiple versions of julia to be installed, updated and maintained.
You can install the juliaup tool in two ways:
openSUSE repos (recommended)
sudo zypper in juliaup && juliaup install release
Following the GitHub repository instructions:
curl -fsSL https://install.julialang.org | sh