in my opinion Tether is still safe to hold my funds, because Tether is still popular and many people are still using Tether to hold the money (seen from the volume of Tether which is still high), thus making Tether safe to use and hold, so as long as there are still many people who support Tether and until then Tether is still safe and feasible to use.
However, popularity doesn't guarantee that Tether to survive for a long time. If it has a problem/case in the near future, it may crash the value. XRP is one of the examples of crypto coins that ever crashed because it has a problem with SEC. Also, many people who hold Tether, can't guarantee anything. They hold Tether now because it has good popularity. But when it is no longer as popular as now, people may move their money (funds) from Tether to another stablecoin. Don't fully 100% trust on stable coin!!