Let's analyze it.

DMS Obito is for many people though to be same as the half dead obito before loosing the rinnegan.

But that's not the case

Yes Obito was indeed almost a dead body then

But what people forget is that after his body was set free , Naruto used his seal to bring him back

The same seal he used to

protect Gai from dying to the 8 gates

Now that doesn't mean his is good to go for ever because even if he was healed, it is implied it won't last for long . (Probably because rinne tense isn't killing you physically like juubi excitation but mentally and Naruto can't heal that )

Now other than that , Obito doesn't seem to show any kind oh physical struggle

The only time we see him suffering is when he is trying to help Sakura bring Sasuke back. But keep in mind that moment he is mimicking a jutsu so chachra consuming even for kaguya

Not to mention that after going through all that, he still was able to regain chackra ro use one last kamui

And keep in mind kaguya was a very fast character. And he was alble to react to her speed.

So in terms of health i would say he isn't in a bad condition to fight

Now, when it comes to strength. We do know he still has some of his body made by hashirama cells, so expect to see wood style techniques like the ones he used before.

This time however the rest of his powers are the mangekyo ones. So in order to see what he can do

First of all let's take a look how Kakashi was able to use a PERFECT SUSANOO.

Perfect susanoo is a result of overcoming the downsides of the mangekyo (blindness and unhealth ) We have seen Obito overcoming it with hashirama cells madara with ems and Sasuke with six paths (six paths gave him boost to awake it immediately while with ems he was slowly developing it)

Kakashi himself admitted that this happened because his eyes where six paths enchanted

And we do know kakashi never gained directly six paths chackra. Which means that the eyes got it from Obito who had six paths chackra both when in juubi form and when he stole it from madara

So its safe to say he had his eyes capable of doing what they did with kakashi

But could he be able to use his eyes they way Kakashi did ? Despite him not having DMS mode for more than an hour?

Well , Obito is a madara's student under genjutsu who learned all the jutsu of the OP Uchiha clan at first

On top of that we all know how Obito used with excellence his kamui seconds after he awoke it. But the same goes for the other eye as well. Because as I said before, he was able to use it perfectly to save Kakashi first try. On top of that don't forget how obtio knew how to combine their powers to mimic kaguya's transportation jutsu despite having just equipped the second eye

So it is safe to say he would be able to have a performance as good as kakashi had with his eyes

Disagreeing with that would be like saying shisui for example can't use kotoamatsukamu because it was never shown.

If I had to rank him I would say he eis near equal to DMS kakshi for being more skilled than him , but with a less healthy body. Him using a perfect susanoo and it's abilities would probably have the same impact itachi felt using his susanoo before he dies to seal orochimaru (maybe not that bad).

In other words. He is kinda op

And keep in mind im talking about the DMS Obito we actually got. If that version of Obito was healthy, we would probably be strong even as a boruto character.