Can I rollover IRA again?

I have a Rollover IRA account I opened years ago (rolled over 401k from an older job).

I just left another job in 2021 and wanted to rollover my 401k funds from this previous job into my current Rollover IRA account. Is there anything I need to consider that would affect taxes? Is it ok to rollover multiple 401ks into the same Rollover IRA account?

 

I don't have a traditional IRA or a Roth IRA.