Arduino Seeed SAMD Board installation error: bossac not available

Hi all,

I’m trying to install Seeed SAMD Board v1.8.2 on Arduino v1.8.15 and I get error regarding bossac not being available for operating system that I’m using. The OS is a Ubuntu 21.04 64 bit for arm devices installed on a Raspberry PI 4.
The error message looks like this:
Tool bossac is not available for your operating system. java.lang.RuntimeException: java.lang.Exception: Tool bossac is not available for your operating system. at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onInstallPressed$2(ContributionManagerUI.java:179) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.Exception: Tool bossac is not available for your operating system. at cc.arduino.contributions.packages.ContributionInstaller.install(ContributionInstaller.java:88) at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onInstallPressed$2(ContributionManagerUI.java:172) ... 1 more
Can you please help debug this problem? Does anyone knows how to install Seeed SAMD Board on Ubuntu 21.04 for ARM64?
Is it less error prone to use a 32 bit version of OS?

Regards,
Vlad