This is gonna sound like a troll post but i assure you it is not.
I don’t have a coding background but I’ve used Teams in a lot of workplaces and really only encountered like 2 issues entirely.
Either I got seriously lucky or it was before enshittification.
Why do you yourself dislike it? Is it UI? Performance?
I should also say I use Teams for basic purposes like messaging and uploading files, I literally don’t touch anything else and performance hadn’t been an issue. (Likely because I’ve been given thicc-ass workstations in the past)
I’d consider Slack to potentially qualify as a collaboration platform though, it integrates really well into both SharePoint and GDrive to enable shared editing - that editing isn’t baked into slack but slack does go out of its way to support it through link unfurling and document embedding.
I actually think Teams is weaker in this regard because it’s too easy to accidentally download and copy files when you’re intending to edit a shared copy (and SharePoint has some wonkiness with syncing changes in a reasonable time frame).