Minted my first NFT on BTC
No you did not.
What you did was to inject an arbitrary data into the bitcoin blockchain.
There is no token.
There is no NFT.
There is no smart contract (in the sense of creating a token).
There is only arbitrary data.
You can't even transfer that "data" as you would a token, it is a one time push to the immutable bitcoin blockchain.
What you did was to participate in a malicious attack.

these ordinal crap memes are not actual NFT
they have no true blockchain based proof of transfer
yes "software" can analysis and decide what it wants to show and choose as the output path. but nothing in pure blockchain data shows the path using proofs
bitcoin value(btc) does show proof of transfer.. but the crappy memes dont. its just dead weight.
once people realise it they will realise they have been suckered into paying for a meme thats not spendable. unless they find another fool to dupe into buying it.
Thanks so much for the info you both.
So you mean to say that apart from people maliciously spamming the mempool, there are a lot of naive people like the OP who haven't heard about what you have just explained?

I didn't know that either but at least I don't spam the mempool.