There is some special interpretation of indoor/outdoor freq by Mikrotik.. In some of their country tables they tag the outdoor freq as "outdoor". In some other they don't tag the outdoor freq (what is correct in MHO). Then they have installation "indoor/outdoor/any".
Installation outdoor will not allow freq tagged as indoor. (They are illegal if used outdoor, because they can disturb some services)
Installation indoor will not allow freq tagged as outdoor in MT. (There is no reason to do so for legal requirements. If you are indoor, outdoor freq will not harm anyone.)
To avoid this blocking of the outdoor freq, there is installation "any".
So some devices (SXT, Omnitik, ...) can only set installation outdoor, and cannot use indoor (=illegal) freq.
There should not be any device that is limited to indoor freq only.
For Sweden , you have in the list:
[admin@MikroTik] > interface wireless info country-info sweden
ranges: 2402-2482/b,g,gn20,gn40(20dBm)
2417-2457/g-turbo(20dBm)
5170-5250/a,an20,an40,ac20,ac40,ac80,ac160,ac80+80(23dBm)/passive,indoor
5170-5330/a,an20,an40,ac20,ac40,ac80,ac160,ac80+80(20dBm)/dfs,passive,indoor
5250-5330/a,an20,an40,ac20,ac40,ac80,ac160,ac80+80(20dBm)/dfs,passive,indoor
5490-5710/a,an20,an40,ac20,ac40,ac80,ac160,ac80+80(27dBm)/dfs,passive
This is correct for remaining legal.
If you want to limit the freq used , either set it manually (preferred instead of "auto") and set the "scan list" or make a "channel list".
Indeed some devices or sticks (like my Edimax EW-7822UTC) are limited and can only connect to non-DFS freq. This is very limited for Europe (channel 36-48 only)
So even indoor-only would not be good enough as limitation on the AP.
(MKX is faster in typing than me. I will post it anyway .... :-) )