Hi C
The stock game is bugged and unplayable.
For SH5 and Steam you will need to use this fix.
Post #160 TDW’s Generic File Patcher Steam Installation Instructions By sirrawsrsalot > Updated Version
TDW's Generic File Patcher is an essential application that sorts out the bugs and glitches.
If you are new to SH5 look > > HERE <<
For the sake of stability it is better to use TWOS as it is 99.99% stable even though it contains over 100 mods.
For the other SH versions 3 and 4 with STEAM there is an easier conversion available.
Peter