Does anyone have current recommendations for an alternative to nextcloud file syncing/sharing?

I use it only for the below:

• synchronize some files/folders between some of my devices
• share files/folders with friends who don’t have an account; either with no password/account, or a password set at time of sharing
  • temporary/timed sharing so it is eventually no longer shared is nice, but not required
• use its webui like dropbox to upload files to my server from random machines (or download them)

And for that, nextcloud seems to be overkill.