No. I've used DnDBeyond only as a player several years ago when another DM invited me to his game (which lasted for a few sessions.) I didn't find the UI to my liking, so I never invested in the technology (like buying the online resources or subscribing). I had already purchased so many physical books and bought in with Roll20 for my pandemic play. I didn't want to buy stuff for a third time in an electronic format I didn't like.@OP, do you use DnDBeyond? I have a busy full-time job, a family life, and am currently running three campaigns, two for mostly beginners. So, much like you. I don’t think I could do it without DDB. It saves me hours each week, and makes it much, much easier to track characters and campaigns, and for new players to learn the game.
Nowadays I'm running PF2 for one group and 4e for another. I still have 5e for another group, but that group meets very erratically (if we're lucky, once a month). While both PF2 and 4e have their challenges, I've found the online tools helpful enough. (PF2 - Foundry VTT's automation and Archives of Nethys; 4e - the old character builder and the online database.)
When I was running 5e regularly, I did use online tools - including Encounter Builders. However, I think that even with online tools, the game doesn't provide the core rules needed to balance it in the same way PF2 or 4e (or 3.x/PF1) does. It makes me hesitant to try to run 5e again, and I'm doubtful that 2024's revision will help.