FEDORA version - Zoom in Systemd Cgroups on Linux. Change the max allocations to fit your workstation.

00-throttle-zoom

#!/usr/bin/env bash

# throttle-zoom '0-1' '6G'

set -xe

main() (
  allowedCpus="${1?Missing allowed CPUs, ex: 0-4}"
  maxMemory="${2?Missing max memory, ex: 6G}"

  # Add parameter checks to avoid invalid values here

  mkdir -p "${XDG_CONFIG_HOME}/systemd/user"

  {
    printf '[Slice]\n'
    printf 'AllowedCPUs=%s\n' "${allowedCpus}"
    printf 'MemoryHigh=%s\n' "${maxMemory}"
  } > "${XDG_CONFIG_HOME}/systemd/user/zoom.slice"

  awk '{
    if ($0 ~ /^Exec=/)
      print "Exec=/usr/bin/systemd-run --user --slice=zoom.slice /usr/bin/zoom %U";
    else
      print;
  }' < /usr/share/applications/Zoom.desktop > "${HOME}/.local/share/applications/Zoom.desktop"

  update-desktop-database ~/.local/share/applications
)

main "$@"

echo "========== RESULT ========="
cat "${XDG_CONFIG_HOME}/systemd/user/zoom.slice"

echo "========== DESKTOP ========="
cat "${HOME}/.local/share/applications/Zoom.desktop"

autorun

ln -s "${HOME}/.local/share/applications/Zoom.desktop" "${XDG_CONFIG_HOME}/autostart/Zoom.desktop"

throttle-zoom-unused

#!/usr/bin/bash -xe

cat <<EOF > "${HOME}/.config/systemd/user/zoom.slice"
[Slice]
AllowedCPUs=0-4
MemoryHigh=6G
EOF

cat /usr/share/applications/Zoom.desktop | sed -E 's#^(Exec=).*$#Exec=/usr/bin/systemd-run --user --slice=zoom.slice /opt/zoom/ZoomLauncher#' > "${HOME}/.local/share/applications/Zoom.desktop"

update-desktop-database ~/.local/share/applications