Using Classic Outlook on Windows for personal email, calendar, and contact management
OMG, YES! The new Outlook is horrendous! I tried, too; I stayed on it for about six months and finally went back to the old desktop version.
Nothing worked correctly, and most of the features I used had glitches. I sent several messages to Microsoft about them, and none were ever fixed during the 1/2 year I tried it. I am so happy to be back on the old one, but now I feel like they are causing issues on purpose to entice people to switch to the new version. I wish they would leave things alone until they are 100% on the latest platform. I have enough to do at work than to have our email system slow me down or cause me to have to stop because of issues or something that it will not do.