Truth to be told, there are only a few coins that I really use for the purpose they're created for. I mostly buy them to trade and increase my BTC bag. The only coins I really use are BNB (for trading discount) and Monero (anonymous transaction).
After reading op, i thought about what alts i used in the past for what they are really supposed for, and found nothing but the one mentioned in this reply:
_Monero for a private transaction instead of using a mixer to send btc.
_BNB for paying low withdrawal fee in Binance exchange.
+ eth which i used to pay gas fee when sending ERC20 tokens and sometimes for peer to peer crypto sales when i mining fee for bitcoin reaches a high level.
Almost all crypto users are either traders or investors who have the only goal of buying and selling them for a profit purpose. Somehow disappointed but true.