If the NFTs have interesting real use cases and fundamentals rather than just a simple JPEG or collectible, then it’s worth having it.
In some NFT groups that I belong where some have availed the free mint, they did sell it successfully with a decent floor price or so.
But I would rather mint a free NFT that is unique, out of the box and attractive in the eyes of the collectors aside from its real use cases and fundamentals.
Most of the "free" NFTs are garbage as they don't provide any real use cases to the world. They're only created as a means to attract investors into NFT projects by ultimately "sucking" as much money out of them as possible. It's similar to certain airdrops of tokens with no real purpose in life. Only in-game items and certain digital collectibles are worth it. The NFT hype hasn't vanished yet, so expect a constant influx of "freebies" clogging up your wallet like there's no tomorrow. Just my opinion
Any NFT projects that one doesn't work or doesn't earn it is considering as a scam projects, things in the space is highly placed for hardwork and no longer free. I have participated in NFT projects on the discord app, and I tell you this for free, it's stress before one can win whitelist spot on a project. All the grinding and drawing of diagrams issued by the moderators are all processes which one needs to posseses before earning NFTs. In that way, we prepare our minting fee inother to earn more profits from the projects. But some projects are over hype and consider not favourable for investors and traders.