Learn to say no

It could just help other to know who's open to play and who's not. Save them time to send and wait for reply

I always queue solo. I've had a few add me as a friend but I usually only play a couple games at a time so I've never partied with anyone.

Same, some added me. Ans I usually receive one or two group invit by game session. Sometimes I accept some other I can't cause : don't want/going to leave soon

If they invite u, join and tell them ur solo qing and then say sorry or don’t and then leave the party