2017 MacBook Pro Dying Early

If you are running a battery that is already four years old and has 674 Charge cycles accumulated down to the point your computer powers off, it could very well be spent. Battery longevity depends not only on charge cycles, but also time.

Apple suggests "replace now" when your battery provides only about 80 percent of the time it could provide when new.

That computer is a battery-CAPABLE device. It is not optimized as a battery-operated device like an iPhone.

Your computer performs best when connected to AC power. It can use the full output of the Power Adapter AND when doing especially challenging work will also freely "borrow" power from the battery. In some cases, even with the power adapter connected, the charged state may even decline during stressful work.

When used only on battery, your computer has no extra cushion of power, and will perform more slowly. However, for ordinary non-stressful tasks this may not be objectionable (possibly not even noticeable.)

In general, you should ALWAYS connect AC power when it is possible to do so, and only run on batteries (which will be somewhat slower) when no AC sources are at hand. There are three micro-controllers cooperating on battery and charging issues, and your Mac will NEVER over-charge.

I've had that happened. I asked a question a few months ago about it. Maybe check out the replies because I found them useful (didn't fix the issue though and I am now trying to replace the battery)

https://discussions.apple.com/thread/252964633

Those numbers mean nothing to me.

I want to know what you mean, in practical terms, when you say, "the battery seems to be having issues."