I have found that we can get more than 3 months out of our vacuum sealed meats.
However, after a month or so, it’s good to check them for any that may have lost its seal. Once in a while that happens.
Also, vacuum sealers have attachments you can purchase to seal canning jars. SO I’ve been doing that, putting dry goods in canning jars and vacuum sealing those. I label them with the expiration date and the VS (vacuum seal) date and then they go in a cupboard in the basement where it’s cool and dark.
Yes, Wendy addresses that issue that sometimes the vacuum sealed bags will leak, so it's good to check on them, at least monthly.
Once the bag looses its seal, the meats are more prone to 'freezer burn' as well as loosing visual appeal, and nutritional benefit.