Series 9 and Series 4 here; no noticeable issues. If anything it seems to be using less battery and the complications are working now. Sorry you’ve had issues.

https://preview.redd.it/ip8usrfaykwb1.jpeg?width=368&format=pjpg&auto=webp&s=88266389364d99e5551fb96f11f622f0c9ccf190

Attached is the 5 year old Series 4