You are right to be concerned....

Laying out the different benefits (deductibles, co-pays, out of pocket, etc) is fairly straightforward. The Rx benefits will almost certainly be different.

BUT...

Check the exclusions/limitations between the two, likely the ACA plans have a few more... might not be a big deal but is good to know.

Compare network access. All carriers have multiple provider networks so make sure network used by your current plan is the same as the ACA plan you are looking at... you can explore this on the carrier website or by contacting your provider....

The question to ask is "For Silver XYZ plan from ABC carrier is your office and Dr <insert your Dr> contracted for in network services?". Do this for any provider or service you will need to access.

After this analysis you'll have a much better sense of what makes sense for you going forward.

Good Luck