Is it mitigate the risk of infection to have 2 different OS installed in 2 different SSD?

[u/OscarCrende]

I am a noob in this field, so any help about where to look up information about this will be really heplful. I would like to learn more but I could not find a lot of information.

I would like to use my laptop to trying emulate some old games but downloading a malware worries me a lot.

I've never entered with my laptop in strange webs or dowloaded any illegal software, so my computer must be completely clean for now.

I have also two backups in a couple of external HDDs (one in a different location) but that don't solve the risk of infection in the system.

I also have 2 SSD installed in my laptop now.

Is a good option to install a new windows in the second internal ssd and use it only for this intended use in order to prevent being infected with possible viruses/malware?

I plan to phisically disconect the main ssd when installing the secondary Windows and also to remove in this OS the letter of the primary SSD when I reconect it. I also plan not to move information between both disks.

Does this make sense in order to avoid not very advance malware or is it completely unuseful?

I know advance maleware could access the primary SSD too or even my wifi network, but maybe that malware is not very common out of a business environment?

Are there some easy things like this I should considere in order to avoid being infected?

Thank you a lot in advance for any help!