A major league team will typically carry at least a couple of players on the 40-man roster whom they do not expect to contribute in a given year. They’re usually younger players who needed protection from Rule 5 exposure, or because the team wanted additional depth. If they do make it to the major league roster, it is usually because the team is facing an injury-related crunch, or in September when the active roster expands.
That description fit both Simon Muzziotti and Donny Sands in 2022. Both spent the majority of the season in the minors (although in Muzziotti's case, he also spent time on the Injured List) and only had cameo appearances with the big-league club.